We need to opt some websites into the simulated mouse event dispatch quirk when in modern compatibility mode.
<rdar://problem/49124313>
Created attachment 367241 [details] Patch
Created attachment 367244 [details] Patch
Created attachment 367294 [details] Patch
Created attachment 367296 [details] Patch
Committed r244218: <https://trac.webkit.org/changeset/244218>
Is it possible to remove figma from this list? It's causing us some issues to get both touch and mouse events and we'd rather have standard behavior https://github.com/WebKit/WebKit/blob/98bc1318d16042cd4e4ed1928a78eec33eb06dfa/Source/WebCore/page/Quirks.cpp#L392-L393