Optimize Prefetching #9818
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Optimize Prefetching #9818
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Stats from current PRDefault Server Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Rendered Page Sizes
DiffsDiff for main-HASH.js@@ -437,7 +437,7 @@ if (!window.Promise) {
var data = JSON.parse(document.getElementById('__NEXT_DATA__').textContent);
window.__NEXT_DATA__ = data;
-var version = "9.1.7-canary.3";
+var version = "9.1.7-canary.2";
exports.version = version;
var props = data.props,
err = data.err,
@@ -1390,32 +1390,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1476,7 +1472,7 @@ function () {
}, {
key: "loadPageScript",
value: function loadPageScript(route) {
- var _this3 = this;
+ var _this2 = this;
route = this.normalizeRoute(route);
return new _promise["default"](function (resolve, reject) {
@@ -1485,9 +1481,9 @@ function () {
page = _ref.page,
mod = _ref.mod;
- _this3.pageRegisterEvents.off(route, fire);
+ _this2.pageRegisterEvents.off(route, fire);
- delete _this3.loadingRoutes[route];
+ delete _this2.loadingRoutes[route];
if (error) {
reject(error);
@@ -1500,7 +1496,7 @@ function () {
}; // If there's a cached version of the page, let's use it.
- var cachedPage = _this3.pageCache[route];
+ var cachedPage = _this2.pageCache[route];
if (cachedPage) {
var error = cachedPage.error,
@@ -1514,7 +1510,7 @@ function () {
} // Register a listener to get the page
- _this3.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
+ _this2.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
// rather downloading it again.
@@ -1522,22 +1518,22 @@ function () {
return;
}
- if (!_this3.loadingRoutes[route]) {
+ if (!_this2.loadingRoutes[route]) {
if (true) {
- _this3.getDependencies(route).then(function (deps) {
+ _this2.getDependencies(route).then(function (deps) {
deps.forEach(function (d) {
if (/\.js$/.test(d) && !document.querySelector("script[src^=\"" + d + "\"]")) {
- _this3.loadScript(d, route, false);
+ _this2.loadScript(d, route, false);
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
- _this3.loadRoute(route);
+ _this2.loadRoute(route);
- _this3.loadingRoutes[route] = true;
+ _this2.loadingRoutes[route] = true;
});
} else {}
}
@@ -1573,11 +1569,11 @@ function () {
}, {
key: "loadScript",
value: function loadScript(url, route, isPage) {
- var _this4 = this;
+ var _this3 = this;
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1591,7 +1587,7 @@ function () {
var error = new Error("Error loading script " + url);
error.code = 'PAGE_LOAD_ERROR';
- _this4.pageRegisterEvents.emit(route, {
+ _this3.pageRegisterEvents.emit(route, {
error: error
});
};
@@ -1602,7 +1598,7 @@ function () {
}, {
key: "registerPage",
value: function registerPage(route, regFn) {
- var _this5 = this;
+ var _this4 = this;
var register = function register() {
try {
@@ -1611,15 +1607,15 @@ function () {
page: mod["default"] || mod,
mod: mod
};
- _this5.pageCache[route] = pageData;
+ _this4.pageCache[route] = pageData;
- _this5.pageRegisterEvents.emit(route, pageData);
+ _this4.pageRegisterEvents.emit(route, pageData);
} catch (error) {
- _this5.pageCache[route] = {
+ _this4.pageCache[route] = {
error: error
};
- _this5.pageRegisterEvents.emit(route, {
+ _this4.pageRegisterEvents.emit(route, {
error: error
});
}
@@ -1632,108 +1628,46 @@ function () {
}, {
key: "prefetch",
value: function prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2["default"])(
- /*#__PURE__*/
- _regeneratorRuntime.mark(function _callee2() {
- var scriptRoute, url, cn;
- return _regeneratorRuntime.wrap(function _callee2$(_context2) {
- while (1) {
- switch (_context2.prev = _context2.next) {
- case 0:
- route = _this2.normalizeRoute(route);
- scriptRoute = (route === '/' ? '/index' : route) + ".js";
-
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (!(_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]"))) {
- _context2.next = 6;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 6:
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
-
- if (!(cn = navigator.connection)) {
- _context2.next = 10;
- break;
- }
-
- if (!((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData)) {
- _context2.next = 10;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 10:
- if (!( true && !isDependency)) {
- _context2.next = 16;
- break;
- }
-
- ;
- _context2.next = 14;
- return _this2.getDependencies(route);
-
- case 14:
- _context2.t0 = function (url) {
- _this2.prefetch(url, true);
- };
+ var _this5 = this;
- _context2.sent.forEach(_context2.t0);
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- case 16:
- if (!hasPreload) {
- _context2.next = 19;
- break;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return _context2.abrupt("return");
+ var url = this.assetPrefix;
- case 19:
- if (!isDependency) {
- _context2.next = 21;
- break;
- }
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- return _context2.abrupt("return");
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
+ }
- case 21:
- if (!(document.readyState === 'complete')) {
- _context2.next = 25;
- break;
- }
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
- return _context2.abrupt("return", _this2.loadPage(route)["catch"](function () {}));
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- case 25:
- return _context2.abrupt("return", new _promise["default"](function (resolve) {
- window.addEventListener('load', function () {
- _this2.loadPage(route).then(function () {
- return resolve();
- }, function () {
- return resolve();
- });
- });
- }));
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- case 26:
- case "end":
- return _context2.stop();
- }
- }
- }, _callee2);
- }))();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(function (urls) {
+ return urls.forEach(function (url) {
+ _this5.prefetch(url, true);
+ });
+ });
+ }
}
}]);Diff for main-HASH.module.js@@ -341,7 +341,7 @@ if (!window.Promise) {
var data = JSON.parse(document.getElementById('__NEXT_DATA__').textContent);
window.__NEXT_DATA__ = data;
-var version = "9.1.7-canary.3";
+var version = "9.1.7-canary.2";
exports.version = version;
var {
props,
@@ -1081,32 +1081,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1206,7 +1202,7 @@ class PageLoader {
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
this.loadRoute(route);
@@ -1232,7 +1228,7 @@ class PageLoader {
loadScript(url, route, isPage) {
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1280,65 +1276,42 @@ class PageLoader {
}
prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2.default)(function* () {
- route = _this2.normalizeRoute(route);
- var scriptRoute = (route === '/' ? '/index' : route) + ".js";
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- var url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
- return;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
+ var url = this.assetPrefix;
- var cn;
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- if (cn = navigator.connection) {
- // Don't prefetch if the user is on 2G or if Save-Data is enabled.
- if ((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData) {
- return;
- }
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
}
- if ( true && !isDependency) {
- ;
- (yield _this2.getDependencies(route)).forEach(url => {
- _this2.prefetch(url, true);
- });
- } // Feature detection is used to see if preload is supported
- // If not fall back to loading script tags before the page is loaded
- // https://caniuse.com/#feat=link-rel-preload
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- if (hasPreload) {
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return;
- }
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- if (isDependency) {
- // loadPage will automatically handle dependencies, so no need to
- // preload them manually
- return;
- }
-
- if (document.readyState === 'complete') {
- return _this2.loadPage(route).catch(() => {});
- } else {
- return new _promise.default(resolve => {
- window.addEventListener('load', () => {
- _this2.loadPage(route).then(() => resolve(), () => resolve());
- });
- });
- }
- })();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(urls => urls.forEach(url => {
+ this.prefetch(url, true);
+ }));
+ }
}
}Diff for index.html@@ -12,7 +12,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/framework.9c9aa574c484a7d0240e.module.js"
as="script" crossorigin="anonymous" />
@@ -44,9 +44,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/chunks/framework.4c64484d8a631a55b435.js"
async="" crossorigin="anonymous" nomodule=""></script>Diff for link.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -61,9 +61,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Diff for withRouter.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -59,9 +59,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Serverless Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Serverless bundles Overall decrease ✓
Commit: d5349b5 |
Stats from current PRDefault Server Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Rendered Page Sizes
DiffsDiff for main-HASH.js@@ -437,7 +437,7 @@ if (!window.Promise) {
var data = JSON.parse(document.getElementById('__NEXT_DATA__').textContent);
window.__NEXT_DATA__ = data;
-var version = "9.1.7-canary.3";
+var version = "9.1.7-canary.2";
exports.version = version;
var props = data.props,
err = data.err,
@@ -1390,32 +1390,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1476,7 +1472,7 @@ function () {
}, {
key: "loadPageScript",
value: function loadPageScript(route) {
- var _this3 = this;
+ var _this2 = this;
route = this.normalizeRoute(route);
return new _promise["default"](function (resolve, reject) {
@@ -1485,9 +1481,9 @@ function () {
page = _ref.page,
mod = _ref.mod;
- _this3.pageRegisterEvents.off(route, fire);
+ _this2.pageRegisterEvents.off(route, fire);
- delete _this3.loadingRoutes[route];
+ delete _this2.loadingRoutes[route];
if (error) {
reject(error);
@@ -1500,7 +1496,7 @@ function () {
}; // If there's a cached version of the page, let's use it.
- var cachedPage = _this3.pageCache[route];
+ var cachedPage = _this2.pageCache[route];
if (cachedPage) {
var error = cachedPage.error,
@@ -1514,7 +1510,7 @@ function () {
} // Register a listener to get the page
- _this3.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
+ _this2.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
// rather downloading it again.
@@ -1522,22 +1518,22 @@ function () {
return;
}
- if (!_this3.loadingRoutes[route]) {
+ if (!_this2.loadingRoutes[route]) {
if (true) {
- _this3.getDependencies(route).then(function (deps) {
+ _this2.getDependencies(route).then(function (deps) {
deps.forEach(function (d) {
if (/\.js$/.test(d) && !document.querySelector("script[src^=\"" + d + "\"]")) {
- _this3.loadScript(d, route, false);
+ _this2.loadScript(d, route, false);
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
- _this3.loadRoute(route);
+ _this2.loadRoute(route);
- _this3.loadingRoutes[route] = true;
+ _this2.loadingRoutes[route] = true;
});
} else {}
}
@@ -1573,11 +1569,11 @@ function () {
}, {
key: "loadScript",
value: function loadScript(url, route, isPage) {
- var _this4 = this;
+ var _this3 = this;
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1591,7 +1587,7 @@ function () {
var error = new Error("Error loading script " + url);
error.code = 'PAGE_LOAD_ERROR';
- _this4.pageRegisterEvents.emit(route, {
+ _this3.pageRegisterEvents.emit(route, {
error: error
});
};
@@ -1602,7 +1598,7 @@ function () {
}, {
key: "registerPage",
value: function registerPage(route, regFn) {
- var _this5 = this;
+ var _this4 = this;
var register = function register() {
try {
@@ -1611,15 +1607,15 @@ function () {
page: mod["default"] || mod,
mod: mod
};
- _this5.pageCache[route] = pageData;
+ _this4.pageCache[route] = pageData;
- _this5.pageRegisterEvents.emit(route, pageData);
+ _this4.pageRegisterEvents.emit(route, pageData);
} catch (error) {
- _this5.pageCache[route] = {
+ _this4.pageCache[route] = {
error: error
};
- _this5.pageRegisterEvents.emit(route, {
+ _this4.pageRegisterEvents.emit(route, {
error: error
});
}
@@ -1632,108 +1628,46 @@ function () {
}, {
key: "prefetch",
value: function prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2["default"])(
- /*#__PURE__*/
- _regeneratorRuntime.mark(function _callee2() {
- var scriptRoute, url, cn;
- return _regeneratorRuntime.wrap(function _callee2$(_context2) {
- while (1) {
- switch (_context2.prev = _context2.next) {
- case 0:
- route = _this2.normalizeRoute(route);
- scriptRoute = (route === '/' ? '/index' : route) + ".js";
-
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (!(_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]"))) {
- _context2.next = 6;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 6:
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
-
- if (!(cn = navigator.connection)) {
- _context2.next = 10;
- break;
- }
-
- if (!((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData)) {
- _context2.next = 10;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 10:
- if (!( true && !isDependency)) {
- _context2.next = 16;
- break;
- }
-
- ;
- _context2.next = 14;
- return _this2.getDependencies(route);
-
- case 14:
- _context2.t0 = function (url) {
- _this2.prefetch(url, true);
- };
+ var _this5 = this;
- _context2.sent.forEach(_context2.t0);
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- case 16:
- if (!hasPreload) {
- _context2.next = 19;
- break;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return _context2.abrupt("return");
+ var url = this.assetPrefix;
- case 19:
- if (!isDependency) {
- _context2.next = 21;
- break;
- }
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- return _context2.abrupt("return");
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
+ }
- case 21:
- if (!(document.readyState === 'complete')) {
- _context2.next = 25;
- break;
- }
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
- return _context2.abrupt("return", _this2.loadPage(route)["catch"](function () {}));
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- case 25:
- return _context2.abrupt("return", new _promise["default"](function (resolve) {
- window.addEventListener('load', function () {
- _this2.loadPage(route).then(function () {
- return resolve();
- }, function () {
- return resolve();
- });
- });
- }));
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- case 26:
- case "end":
- return _context2.stop();
- }
- }
- }, _callee2);
- }))();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(function (urls) {
+ return urls.forEach(function (url) {
+ _this5.prefetch(url, true);
+ });
+ });
+ }
}
}]);Diff for main-HASH.module.js@@ -341,7 +341,7 @@ if (!window.Promise) {
var data = JSON.parse(document.getElementById('__NEXT_DATA__').textContent);
window.__NEXT_DATA__ = data;
-var version = "9.1.7-canary.3";
+var version = "9.1.7-canary.2";
exports.version = version;
var {
props,
@@ -1081,32 +1081,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1206,7 +1202,7 @@ class PageLoader {
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
this.loadRoute(route);
@@ -1232,7 +1228,7 @@ class PageLoader {
loadScript(url, route, isPage) {
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1280,65 +1276,42 @@ class PageLoader {
}
prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2.default)(function* () {
- route = _this2.normalizeRoute(route);
- var scriptRoute = (route === '/' ? '/index' : route) + ".js";
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- var url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
- return;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
+ var url = this.assetPrefix;
- var cn;
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- if (cn = navigator.connection) {
- // Don't prefetch if the user is on 2G or if Save-Data is enabled.
- if ((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData) {
- return;
- }
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
}
- if ( true && !isDependency) {
- ;
- (yield _this2.getDependencies(route)).forEach(url => {
- _this2.prefetch(url, true);
- });
- } // Feature detection is used to see if preload is supported
- // If not fall back to loading script tags before the page is loaded
- // https://caniuse.com/#feat=link-rel-preload
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- if (hasPreload) {
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return;
- }
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- if (isDependency) {
- // loadPage will automatically handle dependencies, so no need to
- // preload them manually
- return;
- }
-
- if (document.readyState === 'complete') {
- return _this2.loadPage(route).catch(() => {});
- } else {
- return new _promise.default(resolve => {
- window.addEventListener('load', () => {
- _this2.loadPage(route).then(() => resolve(), () => resolve());
- });
- });
- }
- })();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(urls => urls.forEach(url => {
+ this.prefetch(url, true);
+ }));
+ }
}
}Diff for index.html@@ -12,7 +12,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/framework.9c9aa574c484a7d0240e.module.js"
as="script" crossorigin="anonymous" />
@@ -44,9 +44,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/chunks/framework.4c64484d8a631a55b435.js"
async="" crossorigin="anonymous" nomodule=""></script>Diff for link.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -61,9 +61,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Diff for withRouter.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -59,9 +59,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Serverless Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Serverless bundles Overall decrease ✓
Commit: 7f02403 |
Stats from current PRDefault Server Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Rendered Page Sizes
DiffsDiff for main-HASH.js@@ -437,7 +437,7 @@ if (!window.Promise) {
var data = JSON.parse(document.getElementById('__NEXT_DATA__').textContent);
window.__NEXT_DATA__ = data;
-var version = "9.1.7-canary.3";
+var version = "9.1.7-canary.2";
exports.version = version;
var props = data.props,
err = data.err,
@@ -1390,32 +1390,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1476,7 +1472,7 @@ function () {
}, {
key: "loadPageScript",
value: function loadPageScript(route) {
- var _this3 = this;
+ var _this2 = this;
route = this.normalizeRoute(route);
return new _promise["default"](function (resolve, reject) {
@@ -1485,9 +1481,9 @@ function () {
page = _ref.page,
mod = _ref.mod;
- _this3.pageRegisterEvents.off(route, fire);
+ _this2.pageRegisterEvents.off(route, fire);
- delete _this3.loadingRoutes[route];
+ delete _this2.loadingRoutes[route];
if (error) {
reject(error);
@@ -1500,7 +1496,7 @@ function () {
}; // If there's a cached version of the page, let's use it.
- var cachedPage = _this3.pageCache[route];
+ var cachedPage = _this2.pageCache[route];
if (cachedPage) {
var error = cachedPage.error,
@@ -1514,7 +1510,7 @@ function () {
} // Register a listener to get the page
- _this3.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
+ _this2.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
// rather downloading it again.
@@ -1522,22 +1518,22 @@ function () {
return;
}
- if (!_this3.loadingRoutes[route]) {
+ if (!_this2.loadingRoutes[route]) {
if (true) {
- _this3.getDependencies(route).then(function (deps) {
+ _this2.getDependencies(route).then(function (deps) {
deps.forEach(function (d) {
if (/\.js$/.test(d) && !document.querySelector("script[src^=\"" + d + "\"]")) {
- _this3.loadScript(d, route, false);
+ _this2.loadScript(d, route, false);
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
- _this3.loadRoute(route);
+ _this2.loadRoute(route);
- _this3.loadingRoutes[route] = true;
+ _this2.loadingRoutes[route] = true;
});
} else {}
}
@@ -1573,11 +1569,11 @@ function () {
}, {
key: "loadScript",
value: function loadScript(url, route, isPage) {
- var _this4 = this;
+ var _this3 = this;
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1591,7 +1587,7 @@ function () {
var error = new Error("Error loading script " + url);
error.code = 'PAGE_LOAD_ERROR';
- _this4.pageRegisterEvents.emit(route, {
+ _this3.pageRegisterEvents.emit(route, {
error: error
});
};
@@ -1602,7 +1598,7 @@ function () {
}, {
key: "registerPage",
value: function registerPage(route, regFn) {
- var _this5 = this;
+ var _this4 = this;
var register = function register() {
try {
@@ -1611,15 +1607,15 @@ function () {
page: mod["default"] || mod,
mod: mod
};
- _this5.pageCache[route] = pageData;
+ _this4.pageCache[route] = pageData;
- _this5.pageRegisterEvents.emit(route, pageData);
+ _this4.pageRegisterEvents.emit(route, pageData);
} catch (error) {
- _this5.pageCache[route] = {
+ _this4.pageCache[route] = {
error: error
};
- _this5.pageRegisterEvents.emit(route, {
+ _this4.pageRegisterEvents.emit(route, {
error: error
});
}
@@ -1632,108 +1628,46 @@ function () {
}, {
key: "prefetch",
value: function prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2["default"])(
- /*#__PURE__*/
- _regeneratorRuntime.mark(function _callee2() {
- var scriptRoute, url, cn;
- return _regeneratorRuntime.wrap(function _callee2$(_context2) {
- while (1) {
- switch (_context2.prev = _context2.next) {
- case 0:
- route = _this2.normalizeRoute(route);
- scriptRoute = (route === '/' ? '/index' : route) + ".js";
-
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (!(_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]"))) {
- _context2.next = 6;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 6:
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
-
- if (!(cn = navigator.connection)) {
- _context2.next = 10;
- break;
- }
-
- if (!((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData)) {
- _context2.next = 10;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 10:
- if (!( true && !isDependency)) {
- _context2.next = 16;
- break;
- }
-
- ;
- _context2.next = 14;
- return _this2.getDependencies(route);
-
- case 14:
- _context2.t0 = function (url) {
- _this2.prefetch(url, true);
- };
+ var _this5 = this;
- _context2.sent.forEach(_context2.t0);
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- case 16:
- if (!hasPreload) {
- _context2.next = 19;
- break;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return _context2.abrupt("return");
+ var url = this.assetPrefix;
- case 19:
- if (!isDependency) {
- _context2.next = 21;
- break;
- }
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- return _context2.abrupt("return");
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
+ }
- case 21:
- if (!(document.readyState === 'complete')) {
- _context2.next = 25;
- break;
- }
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
- return _context2.abrupt("return", _this2.loadPage(route)["catch"](function () {}));
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- case 25:
- return _context2.abrupt("return", new _promise["default"](function (resolve) {
- window.addEventListener('load', function () {
- _this2.loadPage(route).then(function () {
- return resolve();
- }, function () {
- return resolve();
- });
- });
- }));
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- case 26:
- case "end":
- return _context2.stop();
- }
- }
- }, _callee2);
- }))();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(function (urls) {
+ return urls.forEach(function (url) {
+ _this5.prefetch(url, true);
+ });
+ });
+ }
}
}]);Diff for main-HASH.module.js@@ -341,7 +341,7 @@ if (!window.Promise) {
var data = JSON.parse(document.getElementById('__NEXT_DATA__').textContent);
window.__NEXT_DATA__ = data;
-var version = "9.1.7-canary.3";
+var version = "9.1.7-canary.2";
exports.version = version;
var {
props,
@@ -1081,32 +1081,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1206,7 +1202,7 @@ class PageLoader {
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
this.loadRoute(route);
@@ -1232,7 +1228,7 @@ class PageLoader {
loadScript(url, route, isPage) {
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1280,65 +1276,42 @@ class PageLoader {
}
prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2.default)(function* () {
- route = _this2.normalizeRoute(route);
- var scriptRoute = (route === '/' ? '/index' : route) + ".js";
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- var url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
- return;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
+ var url = this.assetPrefix;
- var cn;
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- if (cn = navigator.connection) {
- // Don't prefetch if the user is on 2G or if Save-Data is enabled.
- if ((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData) {
- return;
- }
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
}
- if ( true && !isDependency) {
- ;
- (yield _this2.getDependencies(route)).forEach(url => {
- _this2.prefetch(url, true);
- });
- } // Feature detection is used to see if preload is supported
- // If not fall back to loading script tags before the page is loaded
- // https://caniuse.com/#feat=link-rel-preload
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- if (hasPreload) {
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return;
- }
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- if (isDependency) {
- // loadPage will automatically handle dependencies, so no need to
- // preload them manually
- return;
- }
-
- if (document.readyState === 'complete') {
- return _this2.loadPage(route).catch(() => {});
- } else {
- return new _promise.default(resolve => {
- window.addEventListener('load', () => {
- _this2.loadPage(route).then(() => resolve(), () => resolve());
- });
- });
- }
- })();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(urls => urls.forEach(url => {
+ this.prefetch(url, true);
+ }));
+ }
}
}Diff for index.html@@ -12,7 +12,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/framework.9c9aa574c484a7d0240e.module.js"
as="script" crossorigin="anonymous" />
@@ -44,9 +44,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/chunks/framework.4c64484d8a631a55b435.js"
async="" crossorigin="anonymous" nomodule=""></script>Diff for link.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -61,9 +61,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Diff for withRouter.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -59,9 +59,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-61c9f5a18beee988f275.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-68ef09cab458ca1f02cf.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Serverless Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Serverless bundles Overall decrease ✓
Commit: c47e246 |
Stats from current PRDefault Server Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Rendered Page Sizes
DiffsDiff for main-HASH.js@@ -1390,32 +1390,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1476,7 +1472,7 @@ function () {
}, {
key: "loadPageScript",
value: function loadPageScript(route) {
- var _this3 = this;
+ var _this2 = this;
route = this.normalizeRoute(route);
return new _promise["default"](function (resolve, reject) {
@@ -1485,9 +1481,9 @@ function () {
page = _ref.page,
mod = _ref.mod;
- _this3.pageRegisterEvents.off(route, fire);
+ _this2.pageRegisterEvents.off(route, fire);
- delete _this3.loadingRoutes[route];
+ delete _this2.loadingRoutes[route];
if (error) {
reject(error);
@@ -1500,7 +1496,7 @@ function () {
}; // If there's a cached version of the page, let's use it.
- var cachedPage = _this3.pageCache[route];
+ var cachedPage = _this2.pageCache[route];
if (cachedPage) {
var error = cachedPage.error,
@@ -1514,7 +1510,7 @@ function () {
} // Register a listener to get the page
- _this3.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
+ _this2.pageRegisterEvents.on(route, fire); // If the page is loading via SSR, we need to wait for it
// rather downloading it again.
@@ -1522,22 +1518,22 @@ function () {
return;
}
- if (!_this3.loadingRoutes[route]) {
+ if (!_this2.loadingRoutes[route]) {
if (true) {
- _this3.getDependencies(route).then(function (deps) {
+ _this2.getDependencies(route).then(function (deps) {
deps.forEach(function (d) {
if (/\.js$/.test(d) && !document.querySelector("script[src^=\"" + d + "\"]")) {
- _this3.loadScript(d, route, false);
+ _this2.loadScript(d, route, false);
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
- _this3.loadRoute(route);
+ _this2.loadRoute(route);
- _this3.loadingRoutes[route] = true;
+ _this2.loadingRoutes[route] = true;
});
} else {}
}
@@ -1573,11 +1569,11 @@ function () {
}, {
key: "loadScript",
value: function loadScript(url, route, isPage) {
- var _this4 = this;
+ var _this3 = this;
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1591,7 +1587,7 @@ function () {
var error = new Error("Error loading script " + url);
error.code = 'PAGE_LOAD_ERROR';
- _this4.pageRegisterEvents.emit(route, {
+ _this3.pageRegisterEvents.emit(route, {
error: error
});
};
@@ -1602,7 +1598,7 @@ function () {
}, {
key: "registerPage",
value: function registerPage(route, regFn) {
- var _this5 = this;
+ var _this4 = this;
var register = function register() {
try {
@@ -1611,15 +1607,15 @@ function () {
page: mod["default"] || mod,
mod: mod
};
- _this5.pageCache[route] = pageData;
+ _this4.pageCache[route] = pageData;
- _this5.pageRegisterEvents.emit(route, pageData);
+ _this4.pageRegisterEvents.emit(route, pageData);
} catch (error) {
- _this5.pageCache[route] = {
+ _this4.pageCache[route] = {
error: error
};
- _this5.pageRegisterEvents.emit(route, {
+ _this4.pageRegisterEvents.emit(route, {
error: error
});
}
@@ -1632,108 +1628,46 @@ function () {
}, {
key: "prefetch",
value: function prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2["default"])(
- /*#__PURE__*/
- _regeneratorRuntime.mark(function _callee2() {
- var scriptRoute, url, cn;
- return _regeneratorRuntime.wrap(function _callee2$(_context2) {
- while (1) {
- switch (_context2.prev = _context2.next) {
- case 0:
- route = _this2.normalizeRoute(route);
- scriptRoute = (route === '/' ? '/index' : route) + ".js";
-
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (!(_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]"))) {
- _context2.next = 6;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 6:
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
-
- if (!(cn = navigator.connection)) {
- _context2.next = 10;
- break;
- }
-
- if (!((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData)) {
- _context2.next = 10;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 10:
- if (!( true && !isDependency)) {
- _context2.next = 16;
- break;
- }
-
- ;
- _context2.next = 14;
- return _this2.getDependencies(route);
-
- case 14:
- _context2.t0 = function (url) {
- _this2.prefetch(url, true);
- };
+ var _this5 = this;
- _context2.sent.forEach(_context2.t0);
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- case 16:
- if (!hasPreload) {
- _context2.next = 19;
- break;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return _context2.abrupt("return");
+ var url = this.assetPrefix;
- case 19:
- if (!isDependency) {
- _context2.next = 21;
- break;
- }
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- return _context2.abrupt("return");
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
+ }
- case 21:
- if (!(document.readyState === 'complete')) {
- _context2.next = 25;
- break;
- }
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
- return _context2.abrupt("return", _this2.loadPage(route)["catch"](function () {}));
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- case 25:
- return _context2.abrupt("return", new _promise["default"](function (resolve) {
- window.addEventListener('load', function () {
- _this2.loadPage(route).then(function () {
- return resolve();
- }, function () {
- return resolve();
- });
- });
- }));
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- case 26:
- case "end":
- return _context2.stop();
- }
- }
- }, _callee2);
- }))();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(function (urls) {
+ return urls.forEach(function (url) {
+ _this5.prefetch(url, true);
+ });
+ });
+ }
}
}]);Diff for main-HASH.module.js@@ -1081,32 +1081,28 @@ var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
/* global document, window */
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
} catch (_unused) {
return false;
}
}
-var hasPreload = supportsPreload(document.createElement('link'));
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
-function preloadLink(url, resourceType) {
+function appendLink(href, rel, as) {
var link = document.createElement('link');
- link.rel = prefetchOrPreload;
link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
document.head.appendChild(link);
}
@@ -1206,7 +1202,7 @@ class PageLoader {
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet'); // FIXME: handle failure
}
});
this.loadRoute(route);
@@ -1232,7 +1228,7 @@ class PageLoader {
loadScript(url, route, isPage) {
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1280,65 +1276,42 @@ class PageLoader {
}
prefetch(route, isDependency) {
- var _this2 = this;
-
- return (0, _asyncToGenerator2.default)(function* () {
- route = _this2.normalizeRoute(route);
- var scriptRoute = (route === '/' ? '/index' : route) + ".js";
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
+ var cn;
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- var url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
- return;
- }
+ if (cn = navigator.connection) {
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
+ }
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
+ var url = this.assetPrefix;
- var cn;
+ if (isDependency) {
+ url += route;
+ } else {
+ route = this.normalizeRoute(route);
+ this.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- if (cn = navigator.connection) {
- // Don't prefetch if the user is on 2G or if Save-Data is enabled.
- if ((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData) {
- return;
- }
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
}
- if ( true && !isDependency) {
- ;
- (yield _this2.getDependencies(route)).forEach(url => {
- _this2.prefetch(url, true);
- });
- } // Feature detection is used to see if preload is supported
- // If not fall back to loading script tags before the page is loaded
- // https://caniuse.com/#feat=link-rel-preload
+ url += "/_next/static/" + encodeURIComponent(this.buildId) + "/pages" + encodeURI(scriptRoute);
+ }
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ return;
+ }
- if (hasPreload) {
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return;
- }
+ appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script');
- if (isDependency) {
- // loadPage will automatically handle dependencies, so no need to
- // preload them manually
- return;
- }
-
- if (document.readyState === 'complete') {
- return _this2.loadPage(route).catch(() => {});
- } else {
- return new _promise.default(resolve => {
- window.addEventListener('load', () => {
- _this2.loadPage(route).then(() => resolve(), () => resolve());
- });
- });
- }
- })();
+ if ( true && !isDependency) {
+ this.getDependencies(route).then(urls => urls.forEach(url => {
+ this.prefetch(url, true);
+ }));
+ }
}
}Diff for index.html@@ -12,7 +12,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-c0e154c9c5e27167cccb.module.js"
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/framework.9c9aa574c484a7d0240e.module.js"
as="script" crossorigin="anonymous" />
@@ -44,9 +44,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-092f6549c73c0b7a8ee7.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-c0e154c9c5e27167cccb.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/chunks/framework.4c64484d8a631a55b435.js"
async="" crossorigin="anonymous" nomodule=""></script>Diff for link.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-c0e154c9c5e27167cccb.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -61,9 +61,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-092f6549c73c0b7a8ee7.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-c0e154c9c5e27167cccb.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Diff for withRouter.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-c0e154c9c5e27167cccb.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -59,9 +59,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-092f6549c73c0b7a8ee7.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-c0e154c9c5e27167cccb.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Serverless Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Serverless bundles
Commit: 5c2753c |
Stats from current PRDefault Server Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Rendered Page Sizes
DiffsDiff for main-HASH.js@@ -1387,36 +1387,32 @@ var _asyncToGenerator2 = _interopRequireDefault(__webpack_require__("+oT+"));
var _promise = _interopRequireDefault(__webpack_require__("eVuF"));
var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
-/* global document, window */
-
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
- } catch (_unused) {
- return false;
- }
-}
-
-var hasPreload = supportsPreload(document.createElement('link'));
-
-function preloadLink(url, resourceType) {
- var link = document.createElement('link');
- link.rel = prefetchOrPreload;
- link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
+ } catch (_unused) {}
}
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
- document.head.appendChild(link);
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
+
+function appendLink(href, rel, as) {
+ return new _promise["default"](function (res, rej, link) {
+ link = document.createElement('link');
+ link.crossOrigin = "anonymous";
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
+ link.onload = res;
+ link.onerror = rej;
+ document.head.appendChild(link);
+ });
}
var PageLoader =
@@ -1531,7 +1527,9 @@ function () {
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet')["catch"](function () {// FIXME: handle failure
+ // Right now, this is needed to prevent an unhandled rejection.
+ });
}
});
@@ -1577,7 +1575,7 @@ function () {
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1637,97 +1635,57 @@ function () {
return (0, _asyncToGenerator2["default"])(
/*#__PURE__*/
_regeneratorRuntime.mark(function _callee2() {
- var scriptRoute, url, cn;
+ var cn, url, scriptRoute;
return _regeneratorRuntime.wrap(function _callee2$(_context2) {
while (1) {
switch (_context2.prev = _context2.next) {
case 0:
- route = _this2.normalizeRoute(route);
- scriptRoute = (route === '/' ? '/index' : route) + ".js";
-
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (!(_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]"))) {
- _context2.next = 6;
- break;
- }
-
- return _context2.abrupt("return");
-
- case 6:
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
-
if (!(cn = navigator.connection)) {
- _context2.next = 10;
+ _context2.next = 3;
break;
}
- if (!((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData)) {
- _context2.next = 10;
+ if (!(cn.saveData || /2g/.test(cn.effectiveType))) {
+ _context2.next = 3;
break;
}
return _context2.abrupt("return");
- case 10:
- if (!( true && !isDependency)) {
- _context2.next = 16;
- break;
- }
-
- ;
- _context2.next = 14;
- return _this2.getDependencies(route);
+ case 3:
+ url = _this2.assetPrefix;
- case 14:
- _context2.t0 = function (url) {
- _this2.prefetch(url, true);
- };
+ if (isDependency) {
+ url += route;
+ } else {
+ route = _this2.normalizeRoute(route);
+ _this2.prefetched[route] = true;
+ scriptRoute = (route === '/' ? '/index' : route) + ".js";
- _context2.sent.forEach(_context2.t0);
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
+ }
- case 16:
- if (!hasPreload) {
- _context2.next = 19;
- break;
+ url += "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute);
}
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return _context2.abrupt("return");
-
- case 19:
- if (!isDependency) {
- _context2.next = 21;
+ if (!document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
+ _context2.next = 7;
break;
}
return _context2.abrupt("return");
- case 21:
- if (!(document.readyState === 'complete')) {
- _context2.next = 25;
- break;
- }
-
- return _context2.abrupt("return", _this2.loadPage(route)["catch"](function () {}));
-
- case 25:
- return _context2.abrupt("return", new _promise["default"](function (resolve) {
- window.addEventListener('load', function () {
- _this2.loadPage(route).then(function () {
- return resolve();
- }, function () {
- return resolve();
- });
- });
- }));
+ case 7:
+ return _context2.abrupt("return", _promise["default"].all([appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script'), true && !isDependency && _this2.getDependencies(route).then(function (urls) {
+ return _promise["default"].all(urls.map(function (url) {
+ return _this2.prefetch(url, true);
+ }));
+ })]).then( // do not return any data
+ function () {}, // swallow prefetch errors
+ function () {}));
- case 26:
+ case 8:
case "end":
return _context2.stop();
}Diff for main-HASH.module.js@@ -1078,36 +1078,32 @@ var _asyncToGenerator2 = _interopRequireDefault(__webpack_require__("+oT+"));
var _promise = _interopRequireDefault(__webpack_require__("eVuF"));
var _mitt = _interopRequireDefault(__webpack_require__("dZ6Y"));
-/* global document, window */
-
-var prefetchOrPreload = undefined ? 'prefetch' : 'preload';
-
-function supportsPreload(el) {
+function hasPrefetch(link) {
try {
- return el.relList.supports(prefetchOrPreload);
- } catch (_unused) {
- return false;
- }
+ link = document.createElement('link');
+ return link.relList.supports('prefetch');
+ } catch (_unused) {}
}
-var hasPreload = supportsPreload(document.createElement('link'));
-
-function preloadLink(url, resourceType) {
- var link = document.createElement('link');
- link.rel = prefetchOrPreload;
- link.crossOrigin = "anonymous";
- link.href = url;
- link.as = resourceType;
- document.head.appendChild(link);
-}
-
-function loadStyle(url) {
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.crossOrigin = "anonymous";
- link.href = url;
- document.head.appendChild(link);
+var relPrefetch = hasPrefetch() ? // https://caniuse.com/#feat=link-rel-prefetch
+// IE 11, Edge 12+, nearly all evergreen
+'prefetch' : // https://caniuse.com/#feat=link-rel-preload
+// macOS and iOS (Safari does not support prefetch)
+'preload';
+var hasNoModule = 'noModule' in document.createElement('script');
+
+function appendLink(href, rel, as) {
+ return new _promise.default((res, rej, link) => {
+ link = document.createElement('link');
+ link.crossOrigin = "anonymous";
+ link.href = href;
+ link.rel = rel;
+ if (as) link.as = as;
+ link.onload = res;
+ link.onerror = rej;
+ document.head.appendChild(link);
+ });
}
class PageLoader {
@@ -1206,7 +1202,9 @@ class PageLoader {
}
if (/\.css$/.test(d) && !document.querySelector("link[rel=stylesheet][href^=\"" + d + "\"]")) {
- loadStyle(d); // FIXME: handle failure
+ appendLink(d, 'stylesheet').catch(() => {// FIXME: handle failure
+ // Right now, this is needed to prevent an unhandled rejection.
+ });
}
});
this.loadRoute(route);
@@ -1232,7 +1230,7 @@ class PageLoader {
loadScript(url, route, isPage) {
var script = document.createElement('script');
- if ( true && 'noModule' in script) {
+ if ( true && hasNoModule) {
script.type = 'module'; // Only page bundle scripts need to have .module added to url,
// dependencies already have it added during build manifest creation
@@ -1283,61 +1281,38 @@ class PageLoader {
var _this2 = this;
return (0, _asyncToGenerator2.default)(function* () {
- route = _this2.normalizeRoute(route);
- var scriptRoute = (route === '/' ? '/index' : route) + ".js";
-
- if ( true && 'noModule' in document.createElement('script')) {
- scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
- }
-
- var url = _this2.assetPrefix + (isDependency ? route : "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute)); // n.b. If preload is not supported, we fall back to `loadPage` which has
- // its own deduping mechanism.
-
- if (_this2.prefetched[route] || document.querySelector("link[rel=\"" + prefetchOrPreload + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
- return;
- }
-
- _this2.prefetched[route] = true; // Inspired by quicklink, license: https://github.com/GoogleChromeLabs/quicklink/blob/master/LICENSE
-
+ // https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
+ // License: Apache 2.0
var cn;
if (cn = navigator.connection) {
- // Don't prefetch if the user is on 2G or if Save-Data is enabled.
- if ((cn.effectiveType || '').indexOf('2g') !== -1 || cn.saveData) {
- return;
- }
+ // Don't prefetch if using 2G or if Save-Data is enabled.
+ if (cn.saveData || /2g/.test(cn.effectiveType)) return;
}
- if ( true && !isDependency) {
- ;
- (yield _this2.getDependencies(route)).forEach(url => {
- _this2.prefetch(url, true);
- });
- } // Feature detection is used to see if preload is supported
- // If not fall back to loading script tags before the page is loaded
- // https://caniuse.com/#feat=link-rel-preload
+ var url = _this2.assetPrefix;
+ if (isDependency) {
+ url += route;
+ } else {
+ route = _this2.normalizeRoute(route);
+ _this2.prefetched[route] = true;
+ var scriptRoute = (route === '/' ? '/index' : route) + ".js";
- if (hasPreload) {
- preloadLink(url, url.match(/\.css$/) ? 'style' : 'script');
- return;
+ if ( true && hasNoModule) {
+ scriptRoute = scriptRoute.replace(/\.js$/, '.module.js');
+ }
+
+ url += "/_next/static/" + encodeURIComponent(_this2.buildId) + "/pages" + encodeURI(scriptRoute);
}
- if (isDependency) {
- // loadPage will automatically handle dependencies, so no need to
- // preload them manually
+ if (document.querySelector("link[rel=\"" + relPrefetch + "\"][href^=\"" + url + "\"], script[data-next-page=\"" + route + "\"]")) {
return;
}
- if (document.readyState === 'complete') {
- return _this2.loadPage(route).catch(() => {});
- } else {
- return new _promise.default(resolve => {
- window.addEventListener('load', () => {
- _this2.loadPage(route).then(() => resolve(), () => resolve());
- });
- });
- }
+ return _promise.default.all([appendLink(url, relPrefetch, url.match(/\.css$/) ? 'style' : 'script'), true && !isDependency && _this2.getDependencies(route).then(urls => _promise.default.all(urls.map(url => _this2.prefetch(url, true))))]).then( // do not return any data
+ () => {}, // swallow prefetch errors
+ () => {});
})();
}Diff for index.html@@ -12,7 +12,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-e8a4701898cc078b37e0.module.js"
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/framework.9c9aa574c484a7d0240e.module.js"
as="script" crossorigin="anonymous" />
@@ -44,9 +44,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/runtime/webpack-7928590be3ef2e55b835.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-28970b5a87d524ca5f50.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-e8a4701898cc078b37e0.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/chunks/framework.4c64484d8a631a55b435.js"
async="" crossorigin="anonymous" nomodule=""></script>Diff for link.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-e8a4701898cc078b37e0.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -61,9 +61,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-28970b5a87d524ca5f50.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-e8a4701898cc078b37e0.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Diff for withRouter.html@@ -18,7 +18,7 @@
as="script" crossorigin="anonymous" />
<link rel="preload" href="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
as="script" crossorigin="anonymous" />
- <link rel="preload" href="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <link rel="preload" href="/_next/static/runtime/main-e8a4701898cc078b37e0.module.js"
as="script" crossorigin="anonymous" />
</head>
@@ -59,9 +59,9 @@
async="" crossorigin="anonymous" nomodule=""></script>
<script src="/_next/static/chunks/de003c3a9d308750aa009870a5926f9b18ab31f4.bdb1895cb5ac008f5797.module.js"
async="" crossorigin="anonymous" type="module"></script>
- <script src="/_next/static/runtime/main-c7894c8b919067f5cc96.js"
+ <script src="/_next/static/runtime/main-28970b5a87d524ca5f50.js"
async="" crossorigin="anonymous" nomodule=""></script>
- <script src="/_next/static/runtime/main-dabb7de42544cbe5a6be.module.js"
+ <script src="/_next/static/runtime/main-e8a4701898cc078b37e0.module.js"
async="" crossorigin="anonymous" type="module"></script>
<script src="/_next/static/BUILD_ID/_buildManifest.js" async=""
crossorigin="anonymous" nomodule=""></script>Serverless Mode (Decrease detected ✓)General Overall decrease ✓
Client Bundles (main, webpack, commons) Overall decrease ✓
Client Bundles (main, webpack, commons) Modern Overall decrease ✓
Legacy Client Bundles (polyfills)
Client Pages
Client Pages Modern
Client Build Manifests
Serverless bundles
Commit: 69ff434 |
timneutkens
approved these changes
Dec 24, 2019
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This pull request optimizes our page loader's prefetching by changing the following:
prefetchinstead ofpreloadwhen available (so resource loads as low-priority). This lessens CPU load during hydration.preloadis still required for macOS (Safari) and iOS (iOS Safari).quicklink<script>preloading loading was removed as it was for backwards compat, which is now covered by wider-supportedprefetchContrary to an assumption we were operating on (IIRC),
preloaddoes not preparse the script. In fact,prefetchshould actually have better caching characteristics (forces storage in disk cache instead of in-memory, meaning less data transferred on n+1 visit).Only
<link rel="modulepreload">(Chrome + ESModules only) parses a script prior to execution.