Chromium reports loadingFailed for a failed document request and later
loadingFinished when its internal error Document commits and loads under
the same request identity. The sequential navigation audit incorrectly
reported duplicate terminals and a successful terminal without a response.
Recognize this pair only when a same-session chrome-error frame commit
matches the request's frame, loader, and final unreachable URL between
the failure and completion. Keep ordinary request ordering and duplicate
terminal checks, and retain the transport failure in request summaries.
Cover direct and redirected failures, identity mismatches, missing or
misordered commits, extra terminals, and preservation of failure details.
ldm0