ASSERTION FAILED: !isInRoutingArbitrationForArbitrator(proxy) in WebKit::SharedArbitrator::beginRoutingArbitrationForArbitrator
<rdar://problem/66231025>
Created attachment 405430 [details] Patch
Committed r265089: <https://trac.webkit.org/changeset/265089> All reviewed patches have been landed. Closing bug and clearing flags on attachment 405430 [details].