🐞 bug report
Affected Package
The issue is caused by package @angular/zone.js
Is this a regression?
No
Description
A clear and concise description of the problem...
When calling clearInterval or clearTimeout in the restricted context of a content script on Firefox with ZoneJS initialized, the call will error out because the function is no longer being called in the context of the window.
🔬 Minimal Reproduction
Difficult to recreate, I'll update my previous testing repo later today.
🔥 Exception or Error
ERROR TypeError: "'clearInterval' called on an object that does not implement interface Window."

🌍 Your Environment
Angular Version:
Angular CLI: 9.1.1
Node: 12.16.3
OS: darwin x64
Angular: 9.1.1
... animations, cli, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Ivy Workspace: Yes
Package Version
-----------------------------------------------------------
@angular-devkit/architect 0.901.1
@angular-devkit/build-angular 0.901.1
@angular-devkit/build-optimizer 0.901.1
@angular-devkit/build-webpack 0.901.1
@angular-devkit/core 9.1.1
@angular-devkit/schematics 9.1.1
@angular/cdk 9.2.1
@ngtools/webpack 9.1.1
@schematics/angular 9.1.1
@schematics/update 0.901.1
rxjs 6.5.5
typescript 3.8.3
webpack 4.42.0
Anything else relevant?
This applies only to Firefox Web Extension content scripts, a temporary patch to work around this issue is below, placed after the zone.js import in polyfills.ts:
const patchedClearTimeout = window.clearTimeout;
window.clearTimeout = function(...args) {
return patchedClearTimeout.apply(window, args);
};
const patchedClearInterval = window.clearInterval;
window.clearInterval = function(...args) {
return patchedClearInterval.apply(window, args);
};
🐞 bug report
Affected Package
The issue is caused by package @angular/zone.js
Is this a regression?
No
Description
A clear and concise description of the problem...When calling
clearIntervalorclearTimeoutin the restricted context of a content script on Firefox with ZoneJS initialized, the call will error out because the function is no longer being called in the context of thewindow.🔬 Minimal Reproduction
Difficult to recreate, I'll update my previous testing repo later today.
🔥 Exception or Error
🌍 Your Environment
Angular Version:
Anything else relevant?
This applies only to Firefox Web Extension content scripts, a temporary patch to work around this issue is below, placed after the zone.js import in
polyfills.ts: