A route change within the workspace detaches the Inspect page, and WebKit
(GStreamer) deadlocks when a video still starting is detached. Route
changes at loadstart + 0-7 ms hung 4-5 of 120 fresh pages (14 of 120 with
no page code releasing anything, so the detach itself is the trigger).
Inspect now exposes leaveGuard(): a promise while a video on the page is
still starting (current or replaced). The shell renders the next route
once it settles (metadata, error, or the 15 s bound); the latest route
wins. Route changes at loadstart + 0-7 ms now hang 0 of 120.
Not changed, with numbers in TESTING.md D62:
- A replaced video still shows above the new preview until it settles.
Same-slot stacking changes the video's own box and hung again
(absolute 5/120, absolute + opacity 0 8/120, one-cell grid 4/120).
- A real page leave cannot wait. Navigating away hung 8/120 and reload
22/120 even with no page-side release, so it stays a known limitation.
Vito Sansevero
ae4cf50f11