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[dynamicIO] Use filled Resume Data Cache for final-phase prerenders #79743

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Merged
merged 9 commits into from
Jun 14, 2025
Merged

[dynamicIO] Use filled Resume Data Cache for final-phase prerenders #79743

merged 9 commits into from
Jun 14, 2025

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@unstubbable unstubbable commented May 27, 2025 •
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When a route with dynamic params is prerendered using defined params from generateStaticParams, the filled Resume Data Cache is now used for the final-phase prerender of the matching optional fallback shell.

This ensures that the fallback shell can reuse existing cache entries, which partially mitigates the performance hit we accepted by splitting up the prerendering into two phases.

Furthermore, it will allow us to short-circuit fallback params access in "use cache" functions. Instead of having to wait for the timeout error, we will be able to regard cache misses (excluding cached pages and layouts, whose params access is already handled swiftly) to be caused by including the params in the cache key, if allowEmptyFallbackShell is true.

@ijjk ijjk added created-by: Next.js team PRs by the Next.js team. type: next labels May 27, 2025
@unstubbable unstubbable mentioned this pull request May 27, 2025
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unstubbable commented May 27, 2025 •
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ijjk commented May 27, 2025 •
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Stats from current PR

Default Build (Increase detected ⚠️)
General Overall increase ⚠️
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
buildDuration 18.3s 16.5s N/A
buildDurationCached 15.8s 13.7s N/A
nodeModulesSize 433 MB 433 MB ⚠️ +85.7 kB
nextStartRea..uration (ms) 391ms 387ms N/A
Client Bundles (main, webpack) Overall increase ⚠️
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
194b18f3-HASH.js gzip 53.7 kB 53.7 kB N/A
2192.HASH.js gzip 169 B 169 B ✓
4719-HASH.js gzip 5.47 kB 5.44 kB N/A
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framework-HASH.js gzip 57.4 kB 57.4 kB N/A
main-app-HASH.js gzip 251 B 257 B N/A
main-HASH.js gzip 33.5 kB 33.5 kB N/A
webpack-HASH.js gzip 1.71 kB 1.71 kB N/A
Overall change 44.5 kB 45.1 kB ⚠️ +556 B
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
polyfills-HASH.js gzip 39.4 kB 39.4 kB ✓
Overall change 39.4 kB 39.4 kB ✓
Client Pages
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
_app-HASH.js gzip 193 B 193 B ✓
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amp-HASH.js gzip 501 B 500 B N/A
css-HASH.js gzip 335 B 333 B N/A
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edge-ssr-HASH.js gzip 256 B 255 B N/A
head-HASH.js gzip 350 B 351 B N/A
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image-HASH.js gzip 4.68 kB 4.66 kB N/A
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link-HASH.js gzip 2.52 kB 2.52 kB N/A
routerDirect..HASH.js gzip 319 B 316 B N/A
script-HASH.js gzip 386 B 386 B ✓
withRouter-HASH.js gzip 316 B 315 B N/A
1afbb74e6ecf..834.css gzip 106 B 106 B ✓
Overall change 1.51 kB 1.51 kB ✓
Client Build Manifests
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
_buildManifest.js gzip 752 B 752 B ✓
Overall change 752 B 752 B ✓
Rendered Page Sizes
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
index.html gzip 528 B 530 B N/A
link.html gzip 543 B 543 B ✓
withRouter.html gzip 525 B 526 B N/A
Overall change 543 B 543 B ✓
Edge SSR bundle Size
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
edge-ssr.js gzip 139 kB 139 kB N/A
page.js gzip 232 kB 226 kB N/A
Overall change 0 B 0 B ✓
Middleware size Overall increase ⚠️
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
middleware-b..fest.js gzip 679 B 674 B N/A
middleware-r..fest.js gzip 155 B 157 B N/A
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edge-runtime..pack.js gzip 853 B 853 B ✓
Overall change 33.2 kB 33.4 kB ⚠️ +267 B
Next Runtimes Overall increase ⚠️
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
app-page-exp...dev.js gzip 275 kB 275 kB ⚠️ +103 B
app-page-exp..prod.js gzip 158 kB 158 kB N/A
app-page-tur...dev.js gzip 275 kB 275 kB N/A
app-page-tur..prod.js gzip 158 kB 158 kB N/A
app-page-tur...dev.js gzip 267 kB 267 kB N/A
app-page-tur..prod.js gzip 154 kB 154 kB N/A
app-page.run...dev.js gzip 267 kB 267 kB N/A
app-page.run..prod.js gzip 154 kB 154 kB N/A
app-route-ex...dev.js gzip 69.9 kB 69.9 kB N/A
app-route-ex..prod.js gzip 48.2 kB 48.2 kB ✓
app-route-tu...dev.js gzip 69.9 kB 69.9 kB N/A
app-route-tu..prod.js gzip 48.2 kB 48.2 kB ✓
app-route-tu...dev.js gzip 69.3 kB 69.3 kB N/A
app-route-tu..prod.js gzip 47.8 kB 47.8 kB ✓
app-route.ru...dev.js gzip 69.3 kB 69.3 kB N/A
app-route.ru..prod.js gzip 47.8 kB 47.8 kB ✓
dist_client_...dev.js gzip 326 B 326 B ✓
dist_client_...dev.js gzip 328 B 328 B ✓
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pages-api-tu...dev.js gzip 43.6 kB 43.6 kB ✓
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Overall change 871 kB 871 kB ⚠️ +103 B
build cache Overall increase ⚠️
vercel/next.js canary vercel/next.js hl/share-rdc-with-second-phase-prerenders Change
0.pack gzip 3.91 MB 3.91 MB N/A
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Diff details
Diff for page.js

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Diff for middleware.js

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Diff for edge-ssr.js

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+              const cleanupFnB = cleanupB.current;
+              if (cleanupFnB) {
+                cleanupB.current = null;
+                cleanupFnB();
+              }
+            } else {
+              if (refA) {
+                cleanupA.current = applyRef(refA, current);
+              }
+              if (refB) {
+                cleanupB.current = applyRef(refB, current);
+              }
+            }
+          },
+          [refA, refB]
+        );
+      }
+      function applyRef(refA, current) {
+        if (typeof refA === "function") {
+          const cleanup = refA(current);
+          if (typeof cleanup === "function") {
+            return cleanup;
+          } else {
+            return () => refA(null);
+          }
+        } else {
+          refA.current = current;
+          return () => {
+            refA.current = null;
+          };
+        }
+      }
+      if (
+        (typeof exports.default === "function" ||
+          (typeof exports.default === "object" && exports.default !== null)) &&
+        typeof exports.default.__esModule === "undefined"
+      ) {
+        Object.defineProperty(exports.default, "__esModule", {
+          value: true,
+        });
+        Object.assign(exports.default, exports);
+        module.exports = exports.default;
+      } //# sourceMappingURL=use-merged-ref.js.map
+
+      /***/
+    },
+
+    /***/ 3353: /***/ (
+      module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      module.exports = __webpack_require__(5526);
+
+      /***/
+    },
+
+    /***/ 3594: /***/ (
+      __unused_webpack_module,
+      __webpack_exports__,
+      __webpack_require__
+    ) => {
+      "use strict";
+      // ESM COMPAT FLAG
+      __webpack_require__.r(__webpack_exports__);
+
+      // EXPORTS
+      __webpack_require__.d(__webpack_exports__, {
+        __N_SSP: () => /* binding */ __N_SSP,
+        default: () => /* binding */ pages_image,
+      });
+
+      // EXTERNAL MODULE: ./node_modules/.pnpm/react@19.1.0/node_modules/react/jsx-runtime.js
+      var jsx_runtime = __webpack_require__(5640);
+      // EXTERNAL MODULE: ./node_modules/.pnpm/next@file+..+diff-repo+packages+next+next-packed.tgz_react-dom@19.1.0_react@19.1.0__react@19.1.0/node_modules/next/image.js
+      var next_image = __webpack_require__(3353);
+      var image_default = /*#__PURE__*/ __webpack_require__.n(next_image); // ./pages/nextjs.png
+      /* harmony default export */ const nextjs = {
+        src: "/_next/static/media/nextjs.cae0b805.png",
+        height: 1347,
+        width: 1626,
+        blurDataURL:
+          "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAHCAMAAAACh/xsAAAAD1BMVEX////x8fH6+vrb29vo6Oh8o70bAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAH0lEQVR4nGNgwARMjIyMjCAGCzMzMwsTRISJCcRABwAEcAAkLCQfgAAAAABJRU5ErkJggg==",
+        blurWidth: 8,
+        blurHeight: 7,
+      }; // ./pages/image.js
+      function ImagePage(props) {
+        return /*#__PURE__*/ (0, jsx_runtime.jsxs)(jsx_runtime.Fragment, {
+          children: [
+            /*#__PURE__*/ (0, jsx_runtime.jsx)("h1", {
+              children: "next/image example",
+            }),
+            /*#__PURE__*/ (0, jsx_runtime.jsx)(image_default(), {
+              src: nextjs,
+              placeholder: "blur",
+            }),
+          ],
+        });
+      }
+      var __N_SSP = true;
+      /* harmony default export */ const pages_image = ImagePage;
+
+      /***/
+    },
+
+    /***/ 3854: /***/ (
       __unused_webpack_module,
       exports,
       __webpack_require__
@@ -34,9 +217,9 @@
           return getImgProps;
         },
       });
-      const _warnonce = __webpack_require__(5127);
-      const _imageblursvg = __webpack_require__(4287);
-      const _imageconfig = __webpack_require__(2795);
+      const _warnonce = __webpack_require__(3603);
+      const _imageblursvg = __webpack_require__(7835);
+      const _imageconfig = __webpack_require__(6799);
       const VALID_LOADING_VALUES =
         /* unused pure expression or super */ null && [
           "lazy",
@@ -463,55 +646,69 @@
       /***/
     },
 
-    /***/ 3444: /***/ (
+    /***/ 5526: /***/ (
       __unused_webpack_module,
-      __webpack_exports__,
+      exports,
       __webpack_require__
     ) => {
       "use strict";
-      // ESM COMPAT FLAG
-      __webpack_require__.r(__webpack_exports__);
 
-      // EXPORTS
-      __webpack_require__.d(__webpack_exports__, {
-        __N_SSP: () => /* binding */ __N_SSP,
-        default: () => /* binding */ pages_image,
+      Object.defineProperty(exports, "__esModule", {
+        value: true,
       });
-
-      // EXTERNAL MODULE: ./node_modules/.pnpm/react@19.1.0/node_modules/react/jsx-runtime.js
-      var jsx_runtime = __webpack_require__(5640);
-      // EXTERNAL MODULE: ./node_modules/.pnpm/next@file+..+main-repo+packages+next+next-packed.tgz_react-dom@19.1.0_react@19.1.0__react@19.1.0/node_modules/next/image.js
-      var next_image = __webpack_require__(6359);
-      var image_default = /*#__PURE__*/ __webpack_require__.n(next_image); // ./pages/nextjs.png
-      /* harmony default export */ const nextjs = {
-        src: "/_next/static/media/nextjs.cae0b805.png",
-        height: 1347,
-        width: 1626,
-        blurDataURL:
-          "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAHCAMAAAACh/xsAAAAD1BMVEX////x8fH6+vrb29vo6Oh8o70bAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAH0lEQVR4nGNgwARMjIyMjCAGCzMzMwsTRISJCcRABwAEcAAkLCQfgAAAAABJRU5ErkJggg==",
-        blurWidth: 8,
-        blurHeight: 7,
-      }; // ./pages/image.js
-      function ImagePage(props) {
-        return /*#__PURE__*/ (0, jsx_runtime.jsxs)(jsx_runtime.Fragment, {
-          children: [
-            /*#__PURE__*/ (0, jsx_runtime.jsx)("h1", {
-              children: "next/image example",
-            }),
-            /*#__PURE__*/ (0, jsx_runtime.jsx)(image_default(), {
-              src: nextjs,
-              placeholder: "blur",
-            }),
-          ],
+      0 && 0;
+      function _export(target, all) {
+        for (var name in all)
+          Object.defineProperty(target, name, {
+            enumerable: true,
+            get: all[name],
+          });
+      }
+      _export(exports, {
+        default: function () {
+          return _default;
+        },
+        getImageProps: function () {
+          return getImageProps;
+        },
+      });
+      const _interop_require_default = __webpack_require__(1532);
+      const _getimgprops = __webpack_require__(3854);
+      const _imagecomponent = __webpack_require__(8350);
+      const _imageloader = /*#__PURE__*/ _interop_require_default._(
+        __webpack_require__(1206)
+      );
+      function getImageProps(imgProps) {
+        const { props } = (0, _getimgprops.getImgProps)(imgProps, {
+          defaultLoader: _imageloader.default,
+          // This is replaced by webpack define plugin
+          imgConf: {
+            deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048, 3840],
+            imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
+            path: "/_next/image",
+            loader: "default",
+            dangerouslyAllowSVG: false,
+            unoptimized: false,
+          },
         });
+        // Normally we don't care about undefined props because we pass to JSX,
+        // but this exported function could be used by the end user for anything
+        // so we delete undefined props to clean it up a little.
+        for (const [key, value] of Object.entries(props)) {
+          if (value === undefined) {
+            delete props[key];
+          }
+        }
+        return {
+          props,
+        };
       }
-      var __N_SSP = true;
-      /* harmony default export */ const pages_image = ImagePage;
+      const _default = _imagecomponent.Image; //# sourceMappingURL=image-external.js.map
 
       /***/
     },
 
-    /***/ 4287: /***/ (__unused_webpack_module, exports) => {
+    /***/ 7835: /***/ (__unused_webpack_module, exports) => {
       "use strict";
       /**
        * A shared function, used on both client and server, to generate a SVG blur placeholder.
@@ -566,85 +763,7 @@
       /***/
     },
 
-    /***/ 4985: /***/ (module, exports, __webpack_require__) => {
-      "use strict";
-
-      Object.defineProperty(exports, "__esModule", {
-        value: true,
-      });
-      Object.defineProperty(exports, "useMergedRef", {
-        enumerable: true,
-        get: function () {
-          return useMergedRef;
-        },
-      });
-      const _react = __webpack_require__(148);
-      function useMergedRef(refA, refB) {
-        const cleanupA = (0, _react.useRef)(null);
-        const cleanupB = (0, _react.useRef)(null);
-        // NOTE: In theory, we could skip the wrapping if only one of the refs is non-null.
-        // (this happens often if the user doesn't pass a ref to Link/Form/Image)
-        // But this can cause us to leak a cleanup-ref into user code (e.g. via `<Link legacyBehavior>`),
-        // and the user might pass that ref into ref-merging library that doesn't support cleanup refs
-        // (because it hasn't been updated for React 19)
-        // which can then cause things to blow up, because a cleanup-returning ref gets called with `null`.
-        // So in practice, it's safer to be defensive and always wrap the ref, even on React 19.
-        return (0, _react.useCallback)(
-          (current) => {
-            if (current === null) {
-              const cleanupFnA = cleanupA.current;
-              if (cleanupFnA) {
-                cleanupA.current = null;
-                cleanupFnA();
-              }
-              const cleanupFnB = cleanupB.current;
-              if (cleanupFnB) {
-                cleanupB.current = null;
-                cleanupFnB();
-              }
-            } else {
-              if (refA) {
-                cleanupA.current = applyRef(refA, current);
-              }
-              if (refB) {
-                cleanupB.current = applyRef(refB, current);
-              }
-            }
-          },
-          [refA, refB]
-        );
-      }
-      function applyRef(refA, current) {
-        if (typeof refA === "function") {
-          const cleanup = refA(current);
-          if (typeof cleanup === "function") {
-            return cleanup;
-          } else {
-            return () => refA(null);
-          }
-        } else {
-          refA.current = current;
-          return () => {
-            refA.current = null;
-          };
-        }
-      }
-      if (
-        (typeof exports.default === "function" ||
-          (typeof exports.default === "object" && exports.default !== null)) &&
-        typeof exports.default.__esModule === "undefined"
-      ) {
-        Object.defineProperty(exports.default, "__esModule", {
-          value: true,
-        });
-        Object.assign(exports.default, exports);
-        module.exports = exports.default;
-      } //# sourceMappingURL=use-merged-ref.js.map
-
-      /***/
-    },
-
-    /***/ 5898: /***/ (module, exports, __webpack_require__) => {
+    /***/ 8350: /***/ (module, exports, __webpack_require__) => {
       "use strict";
       /* __next_internal_client_entry_do_not_use__  cjs */
       Object.defineProperty(exports, "__esModule", {
@@ -666,17 +785,17 @@
         __webpack_require__(7897)
       );
       const _head = /*#__PURE__*/ _interop_require_default._(
-        __webpack_require__(5207)
+        __webpack_require__(8843)
       );
-      const _getimgprops = __webpack_require__(2514);
-      const _imageconfig = __webpack_require__(2795);
-      const _imageconfigcontextsharedruntime = __webpack_require__(2349);
-      const _warnonce = __webpack_require__(5127);
-      const _routercontextsharedruntime = __webpack_require__(3556);
+      const _getimgprops = __webpack_require__(3854);
+      const _imageconfig = __webpack_require__(6799);
+      const _imageconfigcontextsharedruntime = __webpack_require__(3905);
+      const _warnonce = __webpack_require__(3603);
+      const _routercontextsharedruntime = __webpack_require__(6712);
       const _imageloader = /*#__PURE__*/ _interop_require_default._(
-        __webpack_require__(5970)
+        __webpack_require__(1206)
       );
-      const _usemergedref = __webpack_require__(4985);
+      const _usemergedref = __webpack_require__(1765);
       // This is replaced by webpack define plugin
       const configEnv = {
         deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048, 3840],
@@ -1001,132 +1120,13 @@
 
       /***/
     },
-
-    /***/ 5970: /***/ (__unused_webpack_module, exports) => {
-      "use strict";
-
-      Object.defineProperty(exports, "__esModule", {
-        value: true,
-      });
-      Object.defineProperty(exports, "default", {
-        enumerable: true,
-        get: function () {
-          return _default;
-        },
-      });
-      const DEFAULT_Q = 75;
-      function defaultLoader(param) {
-        let { config, src, width, quality } = param;
-        var _config_qualities;
-        if (false) {
-        }
-        const q =
-          quality ||
-          ((_config_qualities = config.qualities) == null
-            ? void 0
-            : _config_qualities.reduce((prev, cur) =>
-                Math.abs(cur - DEFAULT_Q) < Math.abs(prev - DEFAULT_Q)
-                  ? cur
-                  : prev
-              )) ||
-          DEFAULT_Q;
-        return (
-          config.path +
-          "?url=" +
-          encodeURIComponent(src) +
-          "&w=" +
-          width +
-          "&q=" +
-          q +
-          (src.startsWith("/_next/static/media/") && false ? 0 : "")
-        );
-      }
-      // We use this to determine if the import is the default loader
-      // or a custom loader defined by the user in next.config.js
-      defaultLoader.__next_img_default = true;
-      const _default = defaultLoader; //# sourceMappingURL=image-loader.js.map
-
-      /***/
-    },
-
-    /***/ 6359: /***/ (
-      module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      module.exports = __webpack_require__(8986);
-
-      /***/
-    },
-
-    /***/ 8986: /***/ (
-      __unused_webpack_module,
-      exports,
-      __webpack_require__
-    ) => {
-      "use strict";
-
-      Object.defineProperty(exports, "__esModule", {
-        value: true,
-      });
-      0 && 0;
-      function _export(target, all) {
-        for (var name in all)
-          Object.defineProperty(target, name, {
-            enumerable: true,
-            get: all[name],
-          });
-      }
-      _export(exports, {
-        default: function () {
-          return _default;
-        },
-        getImageProps: function () {
-          return getImageProps;
-        },
-      });
-      const _interop_require_default = __webpack_require__(1532);
-      const _getimgprops = __webpack_require__(2514);
-      const _imagecomponent = __webpack_require__(5898);
-      const _imageloader = /*#__PURE__*/ _interop_require_default._(
-        __webpack_require__(5970)
-      );
-      function getImageProps(imgProps) {
-        const { props } = (0, _getimgprops.getImgProps)(imgProps, {
-          defaultLoader: _imageloader.default,
-          // This is replaced by webpack define plugin
-          imgConf: {
-            deviceSizes: [640, 750, 828, 1080, 1200, 1920, 2048, 3840],
-            imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
-            path: "/_next/image",
-            loader: "default",
-            dangerouslyAllowSVG: false,
-            unoptimized: false,
-          },
-        });
-        // Normally we don't care about undefined props because we pass to JSX,
-        // but this exported function could be used by the end user for anything
-        // so we delete undefined props to clean it up a little.
-        for (const [key, value] of Object.entries(props)) {
-          if (value === undefined) {
-            delete props[key];
-          }
-        }
-        return {
-          props,
-        };
-      }
-      const _default = _imagecomponent.Image; //# sourceMappingURL=image-external.js.map
-
-      /***/
-    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(2198)
+      __webpack_exec__(264)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for index-HASH.js 
@@ -1,7 +1,24 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [3332],
   {
-    /***/ 9418: /***/ (
+    /***/ 8230: /***/ (
+      __unused_webpack_module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      (window.__NEXT_P = window.__NEXT_P || []).push([
+        "/",
+        function () {
+          return __webpack_require__(8696);
+        },
+      ]);
+      if (false) {
+      }
+
+      /***/
+    },
+
+    /***/ 8696: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -19,30 +36,13 @@
 
       /***/
     },
-
-    /***/ 9532: /***/ (
-      __unused_webpack_module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      (window.__NEXT_P = window.__NEXT_P || []).push([
-        "/",
-        function () {
-          return __webpack_require__(9418);
-        },
-      ]);
-      if (false) {
-      }
-
-      /***/
-    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(9532)
+      __webpack_exec__(8230)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for link-HASH.js 
@@ -1,125 +1,7 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [4672],
   {
-    /***/ 1854: /***/ (
-      __unused_webpack_module,
-      __webpack_exports__,
-      __webpack_require__
-    ) => {
-      "use strict";
-      __webpack_require__.r(__webpack_exports__);
-      /* harmony export */ __webpack_require__.d(__webpack_exports__, {
-        /* harmony export */ __N_SSP: () => /* binding */ __N_SSP,
-        /* harmony export */ default: () => __WEBPACK_DEFAULT_EXPORT__,
-        /* harmony export */
-      });
-      /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
-        __webpack_require__(5640);
-      /* harmony import */ var next_link__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(8770);
-      /* harmony import */ var next_link__WEBPACK_IMPORTED_MODULE_1___default =
-        /*#__PURE__*/ __webpack_require__.n(
-          next_link__WEBPACK_IMPORTED_MODULE_1__
-        );
-
-      function aLink(props) {
-        return /*#__PURE__*/ (0,
-        react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__.jsxs)("div", {
-          children: [
-            /*#__PURE__*/ (0,
-            react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__.jsx)("h3", {
-              children: "A Link page!",
-            }),
-            /*#__PURE__*/ (0,
-            react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__.jsx)(
-              next_link__WEBPACK_IMPORTED_MODULE_1___default(),
-              {
-                href: "/",
-                children: "Go to /",
-              }
-            ),
-          ],
-        });
-      }
-      var __N_SSP = true;
-      /* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = aLink;
-
-      /***/
-    },
-
-    /***/ 3199: /***/ (__unused_webpack_module, exports) => {
-      "use strict";
-
-      Object.defineProperty(exports, "__esModule", {
-        value: true,
-      });
-      Object.defineProperty(exports, "errorOnce", {
-        enumerable: true,
-        get: function () {
-          return errorOnce;
-        },
-      });
-      let errorOnce = (_) => {};
-      if (false) {
-      } //# sourceMappingURL=error-once.js.map
-
-      /***/
-    },
-
-    /***/ 3568: /***/ (
-      __unused_webpack_module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      (window.__NEXT_P = window.__NEXT_P || []).push([
-        "/link",
-        function () {
-          return __webpack_require__(1854);
-        },
-      ]);
-      if (false) {
-      }
-
-      /***/
-    },
-
-    /***/ 3857: /***/ (module, exports, __webpack_require__) => {
-      "use strict";
-
-      Object.defineProperty(exports, "__esModule", {
-        value: true,
-      });
-      Object.defineProperty(exports, "getDomainLocale", {
-        enumerable: true,
-        get: function () {
-          return getDomainLocale;
-        },
-      });
-      const _normalizetrailingslash = __webpack_require__(4869);
-      const basePath =
-        /* unused pure expression or super */ null && (false || "");
-      function getDomainLocale(path, locale, locales, domainLocales) {
-        if (false) {
-        } else {
-          return false;
-        }
-      }
-      if (
-        (typeof exports.default === "function" ||
-          (typeof exports.default === "object" && exports.default !== null)) &&
-        typeof exports.default.__esModule === "undefined"
-      ) {
-        Object.defineProperty(exports.default, "__esModule", {
-          value: true,
-        });
-        Object.assign(exports.default, exports);
-        module.exports = exports.default;
-      } //# sourceMappingURL=get-domain-locale.js.map
-
-      /***/
-    },
-
-    /***/ 3947: /***/ (module, exports, __webpack_require__) => {
+    /***/ 591: /***/ (module, exports, __webpack_require__) => {
       "use strict";
       /* __next_internal_client_entry_do_not_use__  cjs */
       Object.defineProperty(exports, "__esModule", {
@@ -146,17 +28,17 @@
       const _react = /*#__PURE__*/ _interop_require_wildcard._(
         __webpack_require__(148)
       );
-      const _resolvehref = __webpack_require__(3161);
-      const _islocalurl = __webpack_require__(2309);
-      const _formaturl = __webpack_require__(3768);
-      const _utils = __webpack_require__(5554);
-      const _addlocale = __webpack_require__(7591);
-      const _routercontextsharedruntime = __webpack_require__(3556);
-      const _useintersection = __webpack_require__(5624);
-      const _getdomainlocale = __webpack_require__(3857);
-      const _addbasepath = __webpack_require__(4356);
-      const _usemergedref = __webpack_require__(4985);
-      const _erroronce = __webpack_require__(3199);
+      const _resolvehref = __webpack_require__(5837);
+      const _islocalurl = __webpack_require__(5953);
+      const _formaturl = __webpack_require__(6212);
+      const _utils = __webpack_require__(6950);
+      const _addlocale = __webpack_require__(6467);
+      const _routercontextsharedruntime = __webpack_require__(6712);
+      const _useintersection = __webpack_require__(9692);
+      const _getdomainlocale = __webpack_require__(6850);
+      const _addbasepath = __webpack_require__(4928);
+      const _usemergedref = __webpack_require__(1765);
+      const _erroronce = __webpack_require__(8659);
       const prefetched = new Set();
       function prefetch(router, href, as, options) {
         if (false) {
@@ -545,7 +427,17 @@
       /***/
     },
 
-    /***/ 4985: /***/ (module, exports, __webpack_require__) => {
+    /***/ 1148: /***/ (
+      module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      module.exports = __webpack_require__(591);
+
+      /***/
+    },
+
+    /***/ 1765: /***/ (module, exports, __webpack_require__) => {
       "use strict";
 
       Object.defineProperty(exports, "__esModule", {
@@ -623,7 +515,125 @@
       /***/
     },
 
-    /***/ 5624: /***/ (module, exports, __webpack_require__) => {
+    /***/ 5436: /***/ (
+      __unused_webpack_module,
+      __webpack_exports__,
+      __webpack_require__
+    ) => {
+      "use strict";
+      __webpack_require__.r(__webpack_exports__);
+      /* harmony export */ __webpack_require__.d(__webpack_exports__, {
+        /* harmony export */ __N_SSP: () => /* binding */ __N_SSP,
+        /* harmony export */ default: () => __WEBPACK_DEFAULT_EXPORT__,
+        /* harmony export */
+      });
+      /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
+        __webpack_require__(5640);
+      /* harmony import */ var next_link__WEBPACK_IMPORTED_MODULE_1__ =
+        __webpack_require__(1148);
+      /* harmony import */ var next_link__WEBPACK_IMPORTED_MODULE_1___default =
+        /*#__PURE__*/ __webpack_require__.n(
+          next_link__WEBPACK_IMPORTED_MODULE_1__
+        );
+
+      function aLink(props) {
+        return /*#__PURE__*/ (0,
+        react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__.jsxs)("div", {
+          children: [
+            /*#__PURE__*/ (0,
+            react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__.jsx)("h3", {
+              children: "A Link page!",
+            }),
+            /*#__PURE__*/ (0,
+            react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__.jsx)(
+              next_link__WEBPACK_IMPORTED_MODULE_1___default(),
+              {
+                href: "/",
+                children: "Go to /",
+              }
+            ),
+          ],
+        });
+      }
+      var __N_SSP = true;
+      /* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = aLink;
+
+      /***/
+    },
+
+    /***/ 6850: /***/ (module, exports, __webpack_require__) => {
+      "use strict";
+
+      Object.defineProperty(exports, "__esModule", {
+        value: true,
+      });
+      Object.defineProperty(exports, "getDomainLocale", {
+        enumerable: true,
+        get: function () {
+          return getDomainLocale;
+        },
+      });
+      const _normalizetrailingslash = __webpack_require__(6457);
+      const basePath =
+        /* unused pure expression or super */ null && (false || "");
+      function getDomainLocale(path, locale, locales, domainLocales) {
+        if (false) {
+        } else {
+          return false;
+        }
+      }
+      if (
+        (typeof exports.default === "function" ||
+          (typeof exports.default === "object" && exports.default !== null)) &&
+        typeof exports.default.__esModule === "undefined"
+      ) {
+        Object.defineProperty(exports.default, "__esModule", {
+          value: true,
+        });
+        Object.assign(exports.default, exports);
+        module.exports = exports.default;
+      } //# sourceMappingURL=get-domain-locale.js.map
+
+      /***/
+    },
+
+    /***/ 8659: /***/ (__unused_webpack_module, exports) => {
+      "use strict";
+
+      Object.defineProperty(exports, "__esModule", {
+        value: true,
+      });
+      Object.defineProperty(exports, "errorOnce", {
+        enumerable: true,
+        get: function () {
+          return errorOnce;
+        },
+      });
+      let errorOnce = (_) => {};
+      if (false) {
+      } //# sourceMappingURL=error-once.js.map
+
+      /***/
+    },
+
+    /***/ 9666: /***/ (
+      __unused_webpack_module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      (window.__NEXT_P = window.__NEXT_P || []).push([
+        "/link",
+        function () {
+          return __webpack_require__(5436);
+        },
+      ]);
+      if (false) {
+      }
+
+      /***/
+    },
+
+    /***/ 9692: /***/ (module, exports, __webpack_require__) => {
       "use strict";
 
       Object.defineProperty(exports, "__esModule", {
@@ -636,7 +646,7 @@
         },
       });
       const _react = __webpack_require__(148);
-      const _requestidlecallback = __webpack_require__(3543);
+      const _requestidlecallback = __webpack_require__(315);
       const hasIntersectionObserver =
         typeof IntersectionObserver === "function";
       const observers = new Map();
@@ -748,23 +758,13 @@
 
       /***/
     },
-
-    /***/ 8770: /***/ (
-      module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      module.exports = __webpack_require__(3947);
-
-      /***/
-    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(3568)
+      __webpack_exec__(9666)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for routerDirect-HASH.js 
@@ -1,7 +1,7 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [188],
   {
-    /***/ 3618: /***/ (
+    /***/ 76: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -16,7 +16,7 @@
       /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
         __webpack_require__(5640);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(4631);
+        __webpack_require__(9413);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1___default =
         /*#__PURE__*/ __webpack_require__.n(
           next_router__WEBPACK_IMPORTED_MODULE_1__
@@ -36,17 +36,7 @@
       /***/
     },
 
-    /***/ 4631: /***/ (
-      module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      module.exports = __webpack_require__(7086);
-
-      /***/
-    },
-
-    /***/ 7824: /***/ (
+    /***/ 1810: /***/ (
       __unused_webpack_module,
       __unused_webpack_exports,
       __webpack_require__
@@ -54,7 +44,7 @@
       (window.__NEXT_P = window.__NEXT_P || []).push([
         "/routerDirect",
         function () {
-          return __webpack_require__(3618);
+          return __webpack_require__(76);
         },
       ]);
       if (false) {
@@ -62,13 +52,23 @@
 
       /***/
     },
+
+    /***/ 9413: /***/ (
+      module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      module.exports = __webpack_require__(5282);
+
+      /***/
+    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(7824)
+      __webpack_exec__(1810)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for script-HASH.js 
@@ -1,24 +1,17 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [1209],
   {
-    /***/ 1984: /***/ (
-      __unused_webpack_module,
+    /***/ 2227: /***/ (
+      module,
       __unused_webpack_exports,
       __webpack_require__
     ) => {
-      (window.__NEXT_P = window.__NEXT_P || []).push([
-        "/script",
-        function () {
-          return __webpack_require__(5769);
-        },
-      ]);
-      if (false) {
-      }
+      module.exports = __webpack_require__(5984);
 
       /***/
     },
 
-    /***/ 5769: /***/ (
+    /***/ 3043: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -33,7 +26,7 @@
       /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
         __webpack_require__(5640);
       /* harmony import */ var next_script__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(8293);
+        __webpack_require__(2227);
       /* harmony import */ var next_script__WEBPACK_IMPORTED_MODULE_1___default =
         /*#__PURE__*/ __webpack_require__.n(
           next_script__WEBPACK_IMPORTED_MODULE_1__
@@ -66,12 +59,19 @@
       /***/
     },
 
-    /***/ 8293: /***/ (
-      module,
+    /***/ 3642: /***/ (
+      __unused_webpack_module,
       __unused_webpack_exports,
       __webpack_require__
     ) => {
-      module.exports = __webpack_require__(900);
+      (window.__NEXT_P = window.__NEXT_P || []).push([
+        "/script",
+        function () {
+          return __webpack_require__(3043);
+        },
+      ]);
+      if (false) {
+      }
 
       /***/
     },
@@ -81,7 +81,7 @@
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(1984)
+      __webpack_exec__(3642)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
Diff for withRouter-HASH.js 
@@ -1,34 +1,7 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [3263],
   {
-    /***/ 4631: /***/ (
-      module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      module.exports = __webpack_require__(7086);
-
-      /***/
-    },
-
-    /***/ 9216: /***/ (
-      __unused_webpack_module,
-      __unused_webpack_exports,
-      __webpack_require__
-    ) => {
-      (window.__NEXT_P = window.__NEXT_P || []).push([
-        "/withRouter",
-        function () {
-          return __webpack_require__(9803);
-        },
-      ]);
-      if (false) {
-      }
-
-      /***/
-    },
-
-    /***/ 9803: /***/ (
+    /***/ 1089: /***/ (
       __unused_webpack_module,
       __webpack_exports__,
       __webpack_require__
@@ -43,7 +16,7 @@
       /* harmony import */ var react_jsx_runtime__WEBPACK_IMPORTED_MODULE_0__ =
         __webpack_require__(5640);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1__ =
-        __webpack_require__(4631);
+        __webpack_require__(9413);
       /* harmony import */ var next_router__WEBPACK_IMPORTED_MODULE_1___default =
         /*#__PURE__*/ __webpack_require__.n(
           next_router__WEBPACK_IMPORTED_MODULE_1__
@@ -61,13 +34,40 @@
 
       /***/
     },
+
+    /***/ 3962: /***/ (
+      __unused_webpack_module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      (window.__NEXT_P = window.__NEXT_P || []).push([
+        "/withRouter",
+        function () {
+          return __webpack_require__(1089);
+        },
+      ]);
+      if (false) {
+      }
+
+      /***/
+    },
+
+    /***/ 9413: /***/ (
+      module,
+      __unused_webpack_exports,
+      __webpack_require__
+    ) => {
+      module.exports = __webpack_require__(5282);
+
+      /***/
+    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
     /******/ var __webpack_exec__ = (moduleId) =>
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(0, [636, 6593, 8792], () =>
-      __webpack_exec__(9216)
+      __webpack_exec__(3962)
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
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@@ -1,64 +1,64 @@
 (self["webpackChunk_N_E"] = self["webpackChunk_N_E"] || []).push([
   [4977],
   {
-    /***/ 1531: /***/ (
+    /***/ 3579: /***/ () => {
+      /* (ignored) */
+      /***/
+    },
+
+    /***/ 8903: /***/ (
       __unused_webpack_module,
       __unused_webpack_exports,
       __webpack_require__
     ) => {
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 8790, 23)
+        __webpack_require__.t.bind(__webpack_require__, 5356, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 7382, 23)
+        __webpack_require__.t.bind(__webpack_require__, 4304, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 9442, 23)
+        __webpack_require__.t.bind(__webpack_require__, 3152, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 94, 23)
+        __webpack_require__.t.bind(__webpack_require__, 9464, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 693, 23)
+        __webpack_require__.t.bind(__webpack_require__, 1675, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 2439, 23)
+        __webpack_require__.t.bind(__webpack_require__, 7601, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 5083, 23)
+        __webpack_require__.t.bind(__webpack_require__, 2553, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 8103, 23)
+        __webpack_require__.t.bind(__webpack_require__, 1925, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 5625, 23)
+        __webpack_require__.t.bind(__webpack_require__, 959, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 4247, 23)
+        __webpack_require__.t.bind(__webpack_require__, 9389, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 5602, 23)
+        __webpack_require__.t.bind(__webpack_require__, 8628, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.bind(__webpack_require__, 5223)
+        __webpack_require__.bind(__webpack_require__, 8685)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 227, 23)
+        __webpack_require__.t.bind(__webpack_require__, 3077, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 6734, 23)
+        __webpack_require__.t.bind(__webpack_require__, 7812, 23)
       );
       Promise.resolve(/* import() eager */).then(
-        __webpack_require__.t.bind(__webpack_require__, 4120, 23)
+        __webpack_require__.t.bind(__webpack_require__, 5774, 23)
       );
 
       /***/
     },
-
-    /***/ 3505: /***/ () => {
-      /* (ignored) */
-      /***/
-    },
   },
   /******/ (__webpack_require__) => {
     // webpackRuntimeModules
@@ -66,8 +66,8 @@
       __webpack_require__((__webpack_require__.s = moduleId));
     /******/ __webpack_require__.O(
       0,
-      [1305, 6236],
-      () => (__webpack_exec__(9679), __webpack_exec__(1531))
+      [9910, 4860],
+      () => (__webpack_exec__(1389), __webpack_exec__(8903))
     );
     /******/ var __webpack_exports__ = __webpack_require__.O();
     /******/ _N_E = __webpack_exports__;
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Commit: b145019

@ijjk ijjk added the tests label May 28, 2025
@ijjk
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ijjk commented May 28, 2025 •
edited
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Tests Passed

@unstubbable unstubbable force-pushed the hl/share-rdc-with-second-phase-prerenders branch from c2804d4 to 92ae288 Compare May 28, 2025 11:13
@unstubbable unstubbable marked this pull request as ready for review May 28, 2025 14:29
@unstubbable unstubbable marked this pull request as draft May 28, 2025 14:30
@unstubbable unstubbable force-pushed the hl/share-rdc-with-second-phase-prerenders branch from cd9a5fd to 28097ee Compare June 11, 2025 16:27
@unstubbable unstubbable force-pushed the hl/two-phased-static-generation branch from c105985 to 7a1409b Compare June 11, 2025 16:27
@ijjk ijjk added the Rspack label Jun 11, 2025
unstubbable added a commit that referenced this pull request Jun 12, 2025
@unstubbable
Avoid timeout error when transformed params are passed to "use cache"
86afb08 
With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, which
escapes the instrumentation we do to bailout early on params access.
This handling is still needed though when prerendering fallback shells
of routes that don't have any params defined in `generateStaticParams`,
as we don't a prefilled RDC in that case.
@unstubbable unstubbable force-pushed the hl/share-rdc-with-second-phase-prerenders branch from 28097ee to 767eac1 Compare June 12, 2025 19:20
@unstubbable unstubbable force-pushed the hl/two-phased-static-generation branch from 7a1409b to 3a3af68 Compare June 12, 2025 19:20
This was referenced Jun 12, 2025
Merged
Merged
Merged
@unstubbable unstubbable marked this pull request as ready for review June 12, 2025 19:21
@unstubbable unstubbable force-pushed the hl/two-phased-static-generation branch 2 times, most recently from da6421d to 9055c83 Compare June 13, 2025 06:20
@unstubbable unstubbable force-pushed the hl/share-rdc-with-second-phase-prerenders branch from 767eac1 to 43a4121 Compare June 13, 2025 06:20
unstubbable added a commit that referenced this pull request Jun 13, 2025
@unstubbable
Avoid timeout error when transformed params are passed to "use cache"
94bc84d 
With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, which
escapes the instrumentation we do to bailout early on params access.
This handling is still needed though when prerendering fallback shells
of routes that don't have any params defined in `generateStaticParams`,
as we don't a prefilled RDC in that case.
@unstubbable unstubbable force-pushed the hl/share-rdc-with-second-phase-prerenders branch from 43a4121 to 34489ea Compare June 13, 2025 06:26
unstubbable added a commit that referenced this pull request Jun 13, 2025
@unstubbable
Avoid timeout error when transformed params are passed to "use cache"
37c5581 
With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, which
escapes the instrumentation we do to bailout early on params access.
This handling is still needed though when prerendering fallback shells
of routes that don't have any params defined in `generateStaticParams`,
as we don't a prefilled RDC in that case.
Base automatically changed from hl/two-phased-static-generation to canary June 13, 2025 18:15
unstubbable added a commit that referenced this pull request Jun 13, 2025
@unstubbable
Avoid timeout error when transformed params are passed to "use cache"
c587e32 
With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, which
escapes the instrumentation we do to bailout early on params access.
This handling is still needed though when prerendering fallback shells
of routes that don't have any params defined in `generateStaticParams`,
as we don't a prefilled RDC in that case.
@unstubbable unstubbable force-pushed the hl/share-rdc-with-second-phase-prerenders branch from 34489ea to 72b6462 Compare June 13, 2025 18:16
@vercel vercel deleted a comment from changeset-bot bot Jun 13, 2025
@unstubbable unstubbable requested a review from wyattjoh June 13, 2025 18:16
@unstubbable
[dynamicIO] Use filled Resume Data Cache for final-phase prerenders
35f185c 
When a route with dynamic params is prerendered using defined params
from `generateStaticParams`, the filled Resume Data Cache is now used
for the final-phase prerender of the matching optional fallback shell.

This ensures that the fallback shell can reuse existing cache entries,
which partially mitigates the performance hit we accepted by splitting
up the prerendering into two phases.

Furthermore, it will allow us to short-circuit fallback params access in
`"use cache"` functions. Instead of having to wait for the timeout
error, we will be able to regard cache misses to be caused by including
the params in the cache key, if `allowEmptyFallbackShell` is `true`.
@unstubbable
Add a test
eb977b5
@unstubbable
Adjust getRenderResumeDataCache to use new renderResumeDataCache
d861a36
@unstubbable
Fix test for dev mode
6c688e1
@unstubbable
Help GC a bit
9eddf32
@unstubbable
Omit test from deploy tests
f39c38e
@unstubbable
Add a test for a layout with unused dynamic params
51a6b16
@unstubbable
Fix renderResumeDataCache usage in app-page.ts
578ba0e
@unstubbable
Update tests
b145019
unstubbable added a commit that referenced this pull request Jun 14, 2025
@unstubbable
Avoid timeout error when transformed params are passed to "use cache"
a3b2f0b 
With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, which
escapes the instrumentation we do to bailout early on params access.
This handling is still needed though when prerendering fallback shells
of routes that don't have any params defined in `generateStaticParams`,
as we don't a prefilled RDC in that case.
@unstubbable unstubbable force-pushed the hl/share-rdc-with-second-phase-prerenders branch from 72b6462 to b145019 Compare June 14, 2025 07:43
@unstubbable unstubbable merged commit 2c95fef into canary Jun 14, 2025
275 of 285 checks passed
@unstubbable unstubbable deleted the hl/share-rdc-with-second-phase-prerenders branch June 14, 2025 13:19
unstubbable added a commit that referenced this pull request Jun 14, 2025
@unstubbable
Avoid timeout error when transformed params are passed to "use cache"
4aa133e 
With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, which
escapes the instrumentation we do to bailout early on params access.
This handling is still needed though when prerendering fallback shells
of routes that don't have any params defined in `generateStaticParams`,
as we don't a prefilled RDC in that case.
unstubbable added a commit that referenced this pull request Jun 18, 2025
@unstubbable
Avoid timeout error when transformed params are passed to "use cache"
9ad1254 
With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, which
escapes the instrumentation we do to bailout early on params access.
This handling is still needed though when prerendering fallback shells
of routes that don't have any params defined in `generateStaticParams`,
as we don't a prefilled RDC in that case.
unstubbable added a commit that referenced this pull request Jun 18, 2025
@unstubbable
Avoid timeout error when transformed params are passed to `"use cache…
77c9bd8 
…"` (#80463)

With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, e.g.:

```js
import { CachedComponent } from './cached-component'

async function getSlug(params) {
  const { slug } = await params

  return slug
}

export default function Page({ params }) {
  return <CachedComponent slugPromise={getSlug(params)} />
}

export async function generateStaticParams() {
  return [{ slug: 'foo' }]
}
```

This escapes the instrumentation we do to bailout early on fallback
params access. That handling is still needed though when prerendering
fallback shells of routes that don't have any params defined in
`generateStaticParams`, as we don't have a prefilled RDC in that case.
kdy1 pushed a commit that referenced this pull request Jun 19, 2025
@unstubbable @kdy1
Avoid timeout error when transformed params are passed to `"use cache…
20be957 
…"` (#80463)

With #79743, we're now providing a filled Resume Data Cache (RDC) when
prerendering optional fallback shells for routes that have some params
defined in `generateStaticParams`.

This allows us to treat a cache miss in the RDC as an indication that
params were part of the cache key. In this case, we can make the cache
function a dynamic hole in the shell (or produce an empty shell if
there's no parent suspense boundary).

Currently, this also includes layouts and pages that don't read params,
which will be improved when we implement NAR-136. Otherwise, we assume
that if params are passed explicitly into a `"use cache"` function, that
the params are also accessed (same as in #78882). This allows us to
abort early, and treat the function as dynamic, instead of waiting for
the timeout to be reached, even when params are transformed with an
async function, before being passed into the "use cache" function, e.g.:

```js
import { CachedComponent } from './cached-component'

async function getSlug(params) {
  const { slug } = await params

  return slug
}

export default function Page({ params }) {
  return <CachedComponent slugPromise={getSlug(params)} />
}

export async function generateStaticParams() {
  return [{ slug: 'foo' }]
}
```

This escapes the instrumentation we do to bailout early on fallback
params access. That handling is still needed though when prerendering
fallback shells of routes that don't have any params defined in
`generateStaticParams`, as we don't have a prefilled RDC in that case.
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