Assertion failure under LegacyCustomProtocolManager::addCustomProtocol(WTF::RetainPtr<WKCustomProtocol>&&).
<rdar://problem/107838623>
Pull request: https://github.com/WebKit/WebKit/pull/12575
Committed 262773@main (9e6ab96d74e2): <https://commits.webkit.org/262773@main> Reviewed commits have been landed. Closing PR #12575 and removing active labels.