Created attachment 402413 [details] Testcase With the attached testcase, I don't see a green bar in the "Media and Animations" bar in the timelines tab, even after reload. Webkit r263322 inspected by Safari at r263222.
Doesn't work with Safari inspecting itself either.
Created attachment 402529 [details] Patch
Created attachment 402532 [details] Patch
This patch modifies the inspector protocol. Please ensure that any frontend changes appropriately use feature checks for new protocol features.
Comment on attachment 402532 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=402532&action=review r=me. EWS failure seems unrelated. > Source/WebInspectorUI/UserInterface/Models/Animation.js:252 > + // COMPATIBILITY (iOS 14): an iteration count of `Infinity` was not properly handled. Nice.
Committed r263400: <https://trac.webkit.org/changeset/263400> All reviewed patches have been landed. Closing bug and clearing flags on attachment 402532 [details].
<rdar://problem/64646884>