René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"The ngOnDestroy handler crashes after upgrade to Angular 11 on 'ng test' (zone.js issue)","articleBody":"# 🐞 bug report\r\n\r\n### Affected Package\r\nThe issue is caused by package zone.js\r\n\r\n\r\n### Is this a regression?\r\n\r\nYes, the previous version in which this bug was not present was: Angular 10\r\n\r\n\r\n### Description\r\n\r\nAfter updating Angular to version 11 and using the latest zone.js (0.11.3),  on `ng test` the ngOnDestroy handler crashes throwing:\r\n```\r\nERROR Error: Uncaught (in promise): TypeError: Cannot read property 'data-ck-expando' of undefined\r\nTypeError: Cannot read property 'data-ck-expando' of undefined\r\n```\r\n\r\nIt is because `Object.prototype.toString.call( undefined )` returns `[Object Window]` instead of `[Object Undefined]` when the strict mode isn't turned on.\r\n\r\nA similar issue was already reporter in the past: https://github.com/angular/angular/issues/31678\r\n\r\nThe workaround is to import zone.js in `polyfills.js` like this `import 'zone.js/dist/zone.js'` instead of `import 'zone.js/dist/zone'` or `import 'zone.js'`\r\n\r\n\r\n## 🌍  Your Environment\r\n\r\n\u003cpre\u003e\r\n@angular-devkit/architect       0.1100.4\r\n@angular-devkit/build-angular   0.1100.4\r\n@angular-devkit/core            11.0.4\r\n@angular-devkit/schematics      11.0.4\r\n@schematics/angular             11.0.4\r\n@schematics/update              0.1100.4\r\nng-packagr                      11.0.3\r\nrxjs                            6.6.3\r\ntypescript                      4.0.3\r\nwebpack                         4.44.2\r\n\u003c/pre\u003e\r\n","author":{"url":"https://github.com/pkwasnik","@type":"Person","name":"pkwasnik"},"datePublished":"2020-12-20T19:30:14.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/40215/angular/issues/40215"}