https://webrtc.github.io/samples/src/content/getusermedia/getdisplaymedia/ is broken on Webkit ToT
Might have regressed with https://trac.webkit.org/changeset/281880/webkit
Created attachment 440600 [details] Patch
<rdar://problem/84026035>
Created attachment 440601 [details] Patch
Committed r283806 (242699@main): <https://commits.webkit.org/242699@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 440601 [details].