Fix animations in web workers

src/core/core.animator.js

@@ -1,5 +1,3 @@
-import {requestAnimFrame} from '../helpers/helpers.extras.js';
-
 /**
  * @typedef { import('./core.animation.js').default } Animation
  * @typedef { import('./core.controller.js').default } Chart
@@ -41,7 +39,7 @@ export class Animator {
     }
     this._running = true;
 
-    this._request = requestAnimFrame.call(window, () => {
+    this._request = requestAnimationFrame(() => {
       this._update();
       this._request = null;
 

src/helpers/helpers.extras.ts

@@ -8,18 +8,6 @@ export function fontString(pixelSize: number, fontStyle: string, fontFamily: str
   return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
 }
 
-/**
-* Request animation polyfill
-*/
-export const requestAnimFrame = (function() {
-  if (typeof window === 'undefined') {
-    return function(callback) {
-      return callback();
-    };
-  }
-  return window.requestAnimationFrame;
-}());
-
 /**
  * Throttles calling `fn` once per animation frame
  * Latest arguments are used on the actual call
@@ -36,7 +24,7 @@ export function throttled<TArgs extends Array<any>>(
     argsToUse = args;
     if (!ticking) {
       ticking = true;
-      requestAnimFrame.call(window, () => {
+      requestAnimationFrame(() => {
         ticking = false;
         fn.apply(thisArg, argsToUse);
       });

src/platform/platform.basic.js

@@ -17,7 +17,4 @@ export default class BasicPlatform extends BasePlatform {
     // https://github.com/chartjs/Chart.js/issues/2807
     return item && item.getContext && item.getContext('2d') || null;
   }
-  updateConfig(config) {
-    config.options.animation = false;
-  }
 }

test/specs/platform.basic.tests.js

@@ -8,15 +8,6 @@ describe('Platform.basic', function() {
     chart.destroy();
   });
 
-  it('should disable animations', function() {
-    const chart = acquireChart({type: 'line', options: {animation: {}}}, {useOffscreenCanvas: true});
-
-    expect(chart.options.animation).toEqual(false);
-
-    chart.destroy();
-  });
-
-
   it('supports choosing the BasicPlatform in a web worker', function(done) {
     const canvas = document.createElement('canvas');
     if (!canvas.transferControlToOffscreen) {