RESOLVED DUPLICATE of bug 229792 232039
Black box being rendered behind HTML video elements that are portrait 
https://bugs.webkit.org/show_bug.cgi?id=232039
Summary Black box being rendered behind HTML video elements that are portrait
Rex
Reported 2021-10-20 13:29:52 PDT
Created attachment 441928 [details] Screenshot of black box behind video With Safari 15 on iPhones and iPads, a black box is shown behind the HTML video when rendering a portrait video of the front-camera on our WebRTC conferencing site. The black box is not part of the HTML and is being rendered behind the video element but over everything else. See the attached screenshot for an example. It appears to be caused by something related to CSS, since making the video element height 99.9% instead of 100% removes that black box for iPhones and some iPads. The device's screen size affects if the black box shows or not. We are unable to easily reproduce this outside of our site, since it involves rendering a portrait front-camera video feed onto a landscape shaped container. To reproduce on our site, do the following: 1) Go to https://hello.freeconference.com/conf/call/444?skip_join=true&name=test on Safari 15 with an iPad simulator in landscape mode and sidebar closed, or a physical iPad in portrait mode. 2) Accept the Mic and Camera permission prompts to join the call 3) See black box behind video video element
Attachments
Screenshot of black box behind video (186.83 KB, image/jpeg)
2021-10-20 13:29 PDT, Rex 		no flags
Details
Path to HTML video element on DOM (932.29 KB, image/png)
2021-10-20 13:31 PDT, Rex 		no flags
Details
Codepen reproduction screenshot (128.66 KB, image/jpeg)
2021-10-20 14:41 PDT, Rex 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Rex
Comment 1 2021-10-20 13:31:34 PDT
Created attachment 441929 [details] Path to HTML video element on DOM
Rex
Comment 2 2021-10-20 14:40:22 PDT
We have reproduced this on a codepen sandbox on an iPad 8th gen with Safari 15. https://codepen.io/rex-iotum/pen/mdMrqPw
Rex
Comment 3 2021-10-20 14:41:51 PDT
Created attachment 441941 [details] Codepen reproduction screenshot
youenn fablet
Comment 4 2021-10-21 01:43:17 PDT
Please try on latest iOS15.1 beta *** This bug has been marked as a duplicate of bug 229792 ***
Joyce Ma
Comment 5 2021-10-22 12:06:45 PDT
This still occurs on iOS 15.2.
Joyce Ma
Comment 6 2021-10-22 12:20:11 PDT
Ah, nevermind. Read my versioning wrong. Doh!
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