A pending navigator.credentials.get() request whose page enters the back/forward cache trips a debug assertion when that cached page is later destroyed. The session rejects its promise while the script execution context is still suspended. ASSERTION FAILED: !activeDOMObjectsAreSuspended() || scriptExecutionContext()->eventLoop().isSuspended() Source/WebCore/bindings/js/JSDOMPromiseDeferred.cpp:86 Steps to reproduce, in a debug build with the back/forward cache enabled: start a credential request that the wallet leaves pending, navigate the page away so it enters the back/forward cache, then evict it. Debug builds only. Not caused by any recent change; reproduces on main.