Angular 15.0.0: extremely strange behavior in Chrome's DevTools

This issue has been created since 2022-11-21.

Which @angular/* package(s) are the source of the bug?

Don't known / other

Is this a regression?

Yes

Description

  1. do not create an app with ng new
  2. just upgrade your own application to the Angular 15.0.0
  3. open your app in any latest Chromium-based browser (Google Chrome, Microsoft Edge)
  4. inspect any DOM element
  5. this will open DevTools styles pane
  6. uncheck or change any style rule

Now inspected element's styles will double; some other element's styles will just disappear breaking your layout.

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

No response

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 15.0.0
Node: 18.12.1
Package Manager: npm 9.1.1
OS: win32 x64

Angular: 15.0.0
... animations, cdk, cli, common, compiler, compiler-cli, core
... elements, forms, platform-browser, platform-browser-dynamic
... router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1500.0
@angular-devkit/build-angular   15.0.0
@angular-devkit/core            15.0.0
@angular-devkit/schematics      15.0.0
@schematics/angular             15.0.0
rxjs                            7.5.7
typescript                      4.8.4

Anything else?

No response

artuska wrote this answer on 2022-11-21

This behavior is relevant for all Chromium based browsers (checked in Crome, Edge); in Firefox everything is fine.

FetterBaby wrote this answer on 2022-11-21

I've got same problem

JoostK wrote this answer on 2022-11-21

This doesn't seem to reproduce on angular.io (an Angular 15 app), can you share a repro?

FetterBaby wrote this answer on 2022-11-21

@JoostK
I hope this is clear enough, this is my first experience of participating in such things, I may be incorrect, sorry if this is so
https://user-images.githubusercontent.com/108720183/203159159-4e6b3564-85bf-4680-a251-35219a5d198e.mov

JoostK wrote this answer on 2022-11-21

That is almost certainly a Chrome bug.

More Details About Repo
Owner Name angular
Repo Name angular
Full Name angular/angular
Language TypeScript
Created Date 2014-09-18
Updated Date 2022-12-01
Star Count 85220
Watcher Count 3042
Fork Count 22607
Issue Count 1316

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