bug(Dialog): Scrolled sticky elements disappear in Firefox after opening Dialog
- Dominant language
- TypeScript
- Stars
- 25k
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- Avg merge
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Description
#### Reproduction
https://stackblitz.com/edit/angular-f9cnkz?file=src%2Fapp%2Fdialog-overview-example.ts
Steps to reproduce:
1. Place a sticky element in the application
2. Make application scrollable
3. Open the application in Firefox
4. Scroll to the bottom
5. Open a dialog
#### Expected Behavior
The sticky element is still displayed in the background (like it does in Chrome)
#### Actual Behavior
The sticky element disappears, and re-appears after closing the dialog
#### Environment
- Angular: 12.2.1
- CDK/Material: 12.2.1
- Browser(s): Firefox
- Operating System (e.g. Windows, macOS, Ubuntu): Windows 10
Contributor guide
Research direction
Start with the linked StackBlitz reproduction, specifically src/app/dialog-overview-example.ts, and reproduce the behavior in Firefox after scrolling and opening the dialog. Compare it with Chrome; the work is done when the sticky background element remains visible while the dialog is open in Firefox.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- angular, typescript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100