235215 2022-01-13 18:20:29 -0800 canvas captureStream not auto play 2022-01-20 18:21:17 -0800 1 1 1 Unclassified WebKit Canvas Safari 15 iPhone / iPad iOS 15 NEW https://webrtc.github.io/samples/src/content/capture/canvas-video/ InRadar P2 Major --- 1 chris.mo webkit-unassigned dino eric.carlson webkit-bug-importer youennf oldest_to_newest 1830781 0 chris.mo 2022-01-13 18:20:29 -0800 Canvas captrueStream play in video show blank, you can reproduce it on iOS 15.2 devices. 1. Visit https://webrtc.github.io/samples/src/content/capture/canvas-video/ in the iOS device, the right hand side video box just show the black box. 2. When you back and forth to another browser tab, you will find that the right hand side video box able to play the video now. 1832648 1 webkit-bug-importer 2022-01-20 18:21:17 -0800 <rdar://problem/87861532>