Update custom elements polyfill to latest. (#9840)

It seemed Chrome was not using V1 with the version we were using.
ampproject · Jun 12, 2017 · 6b1873b · 6b1873b
1 parent 76374a8
commit 6b1873b
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Showing 4 changed files with 331 additions and 283 deletions.
diff --git a/package.json b/package.json
@@ -25,7 +25,7 @@
     "prepend-v0": "gulp prepend-global --prod node_modules/AMP_CONFIG.json --local --target dist/v0.js && gulp prepend-global --prod node_modules/AMP_CONFIG.json --local --target dist.3p/current-min/f.js"
   },
   "dependencies": {
-    "document-register-element": "1.1.1",
+    "document-register-element": "1.5.0",
     "promise-pjs": "1.1.2",
     "web-animations-js": "2.2.2"
   },

diff --git a/src/polyfills.js b/src/polyfills.js
@@ -36,7 +36,7 @@ import {getMode} from './mode';
   effect in importing the module.
 */
 if (!getMode().localDev) {
-  installCustomElements(self);
+  installCustomElements(self, 'auto');
 }
 installDOMTokenListToggle(self);
 installMathSign(self);

diff --git a/src/service/extensions-impl.js b/src/service/extensions-impl.js
@@ -622,7 +622,7 @@ export function stubLegacyElements(win) {
 function installPolyfillsInChildWindow(childWin) {
   installDocContains(childWin);
   installDOMTokenListToggle(childWin);
-  installCustomElements(childWin);
+  installCustomElements(childWin, 'auto');
 }