Serve a real loopback script so an inactive Network handler cannot pass through an unrelated external fetch failure. Enable Network before installing blocked URLs, correlate the exact Script request and loading failure, and preserve the subsequent parser-work assertions.
Start iframe navigation only after Page and Runtime observation is ready, match the committed session/frame/URL through real scheduler events, then enable interception for the subresource under test. This prevents the setup helper from discarding an early frameNavigated event and keeps preparation navigation outside Fetch interception.
The unmodified exact test failed once in 10 stress iterations. The fixed test passes 30 iterations, its 36-test module passes 10 iterations, and required fmt, workspace Clippy, and all 17184 Nextest tests pass.
Represent the published default page as a target-catalog placeholder with an explicit lifecycle. Materialize it only when an operation needs a live page owner; activate and close the placeholder directly, and create new targets without first constructing the default page.\n\nMake NavigationEngine initialization explicit so read-looking access cannot silently allocate the deferred runtime.
Expose a tab-level CDP frontend that rebinds to the selected page while direct page endpoints remain pinned to their target. Replay persistent Target configuration across rebinds and scope debugger waits to the exact attached target so existing replacement pages are not paused globally.
Carry foreground/background selection through renderer and protocol so auxiliary targets are activated independently of navigation. Match trusted input policy for platform modifiers, Shift, Alt, and window.open while preventing synthetic modified clicks from creating tab-unders.
Release parser execution when the blocking stylesheet state settles, while keeping link and style load/error dispatch as an independent event boundary. Carry parser admission through the page turn so its phase-one consumer can run without an unrelated task splitting the handoff.
ldm0
BibekPathak
Athul Nambiar