This bug is for crash report bp-5e7803b4-4874-4397-a8bc-086840200311.

Top 10 frames of crashing thread:

0 xul.dll mozilla::dom::ServiceWorkerRegistrationInfo::MaybeScheduleTimeCheckAndUpdate dom/serviceworkers/ServiceWorkerRegistrationInfo.cpp:460
1 xul.dll mozilla::dom::ServiceWorkerInterceptController::ShouldPrepareForIntercept dom/serviceworkers/ServiceWorkerInterceptController.cpp:56
2 xul.dll mozilla::net::HttpBaseChannel::ShouldIntercept netwerk/protocol/http/HttpBaseChannel.cpp:2819
3 xul.dll mozilla::net::nsHttpChannel::Connect netwerk/protocol/http/nsHttpChannel.cpp:741
4 xul.dll mozilla::net::nsHttpChannel::ContinueOnBeforeConnect netwerk/protocol/http/nsHttpChannel.cpp:708
5 xul.dll mozilla::net::nsHttpChannel::OnBeforeConnect netwerk/protocol/http/nsHttpChannel.cpp:634
6 xul.dll mozilla::net::nsHttpChannel::HandleOnBeforeConnect netwerk/protocol/http/nsHttpChannel.cpp:553
7 xul.dll std::_Func_impl_no_alloc<`lambda at Z:/task_1583876487/build/src/netwerk/protocol/http/nsHttpChannel.cpp:506:21', nsresult, mozilla::net::nsHttpChannel*>::_Do_call 
8 xul.dll mozilla::net::nsHttpChannel::CallOrWaitForResume netwerk/protocol/http/nsHttpChannel.cpp:9711
9 xul.dll mozilla::detail::RunnableFunction<`lambda at Z:/task_1583876487/build/src/netwerk/protocol/http/nsHttpChannel.cpp:9742:11'>::Run xpcom/threads/nsThreadUtils.h:557

There are 338 crashes (from 210 installations) in nightly 76 starting with buildid 20200310214454. In analyzing the backtrace, the regression may have been introduced by patch [1] to fix bug 1407276.

[1] https://hg.mozilla.org/mozilla-central/rev?node=d32be4ed8786

We'd actually reopened bug 1609665 for this spike.