Bug 223249

Summary: Background video causes flicker in page content
Product: WebKit Reporter: mhenke64 <mhenke64>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal CC: bfulgham, simon.fraser, zalan
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
URL: https://www.w3schools.com/howto/howto_css_fullscreen_video.asp
Attachments:
Description Flags
Video of the issue, notice how the shadow around the inspector also is affected none

Description mhenke64@gmail.com 2021-03-16 04:00:08 PDT 
Background video causes flicker in page content. Even developer tools window gets a flickering shadow.

Example:

https://www.w3schools.com/howto/howto_css_fullscreen_video.asp
Comment 1 Simon Fraser (smfr) 2021-03-16 10:16:34 PDT 
I do not see any flicker with this example.

Please provide more precise steps, including details of your OS version, hardware, and the Safari version you are seeing this with.
Comment 2 mhenke64@gmail.com 2021-03-16 11:55:28 PDT 
Created attachment 423373 [details]
Video of the issue, notice how the shadow around the inspector also is affected

Video of the issue, notice how the shadow around the inspector also is affected
Comment 3 mhenke64@gmail.com 2021-03-16 11:56:08 PDT 
Windows 10
Chrome Version 89.0.4389.90 (Official Build) (64-bit)
Version 89.0.774.54 (Official build) (64-bit)
Firefox no issue
Comment 4 Simon Fraser (smfr) 2021-03-16 12:43:46 PDT 
Please file this in the blink bug tracker at https://bugs.chromium.org.

This bug tracker is for WebKit (the engine behind Safari on iOS/macOS) and other ports.