2e4244d521
Previously, the `elements` docs example only worked in browsers that natively supported Custom Elements and ES2015 modules. Furthermore, it didn't work on StackBlitz, because StackBlitz ignores the specified `target` in `tsconfig.json` and uses the UMD bundles (i.e. ES5 code) even on browsers that do support ES2015. (NOTE: In the past, this was not a problem, because we explicitly did not provide a StackBlitz example. This has changed in #36067.) This commit ensures the example works on all browsers and also on StackBlitz by providing the necessary Custom Elements polyfills. Fixes #36532 PR Close #36536
71 lines
3.2 KiB
TypeScript
71 lines
3.2 KiB
TypeScript
/**
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* This file includes polyfills needed by Angular and is loaded before the app.
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* You can add your own extra polyfills to this file.
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*
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* This file is divided into 2 sections:
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* 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
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* 2. Application imports. Files imported after ZoneJS that should be loaded before your main
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* file.
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*
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* The current setup is for so-called "evergreen" browsers; the last versions of browsers that
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* automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
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* Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
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*
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* Learn more in https://angular.io/guide/browser-support
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*/
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/***************************************************************************************************
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* BROWSER POLYFILLS
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*/
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/** IE10 and IE11 requires the following for NgClass support on SVG elements */
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// import 'classlist.js'; // Run `npm install --save classlist.js`.
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/**
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* Web Animations `@angular/platform-browser/animations`
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* Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
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* Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).
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*/
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// import 'web-animations-js'; // Run `npm install --save web-animations-js`.
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/**
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* By default, zone.js will patch all possible macroTask and DomEvents
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* user can disable parts of macroTask/DomEvents patch by setting following flags
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* because those flags need to be set before `zone.js` being loaded, and webpack
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* will put import in the top of bundle, so user need to create a separate file
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* in this directory (for example: zone-flags.ts), and put the following flags
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* into that file, and then add the following code before importing zone.js.
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* import './zone-flags';
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*
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* The flags allowed in zone-flags.ts are listed here.
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*
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* The following flags will work for all browsers.
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*
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* (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch
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* requestAnimationFrame
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* (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
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* (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch
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* specified eventNames
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*
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* in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
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* with the following flag, it will bypass `zone.js` patch for IE/Edge
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*
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* (window as any).__Zone_enable_cross_context_check = true;
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*
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*/
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/***************************************************************************************************
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* Zone JS is required by default for Angular itself.
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*/
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import 'zone.js/dist/zone'; // Included with Angular CLI.
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/***************************************************************************************************
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* APPLICATION IMPORTS
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*/
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// Custom Elements polyfill. Required for browsers that do not natively support Custom Elements.
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import '@webcomponents/custom-elements';
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// Custom Elements ES5 shim. Required when using ES5 bundles on browsers that natively support
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// Custom Elements (either because the browser does not support ES2015 modules or because the app
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// is explicitly configured to generate ES5 only bundles).
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import '@webcomponents/custom-elements/src/native-shim';
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