Created attachment 457165 [details] Sample HTML illustrating the bug A <video> with the attribute x-webkit-wirelessvideoplaybackdisabled cannot AirPlay. However, if the attribute is removed from the <video>, it still cannot AirPlay, and the property webkitWirelessVideoPlaybackDisabled remains true and cannot be set to false. This bug with x-webkit-wirelessvideoplaybackdisabled is in contrast with the attribute disableremoteplayback, which also disables AirPlay, but AirPlay is successfully re-enabled when disableremoteplayback is removed from the <video>. I've reproduced the x-webkit-wirelessvideoplaybackdisabled bug with Safari Version 15.4 (16613.1.17.1.13, 16613) and Safari Technology Preview Release 143 (Safari 15.4, WebKit 16614.1.7.7) on macOS 11.6.5.
<rdar://problem/91849979>
https://github.com/WebKit/WebKit/pull/461
Committed r293878 (250336@main): <https://commits.webkit.org/250336@main> Reviewed commits have been landed. Closing PR #461 and removing active labels.