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fix(crawler): narrow browser-dead heuristic to typed downcasts (0.36.7)

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anyhow_looks_browser_dead substring-matched any chain message
containing channel / connection / websocket / transport / closed /
nav timeout. Real chromium failures hit those words, but so do
reqwest TCP-reset errors during CDN image downloads, sqlx pool-
timeout errors, and any number of non-browser failures — each of
which triggered a wasted chromium relaunch + session-probe re-run
against the catalog's rate-limit budget.

Drop the substring pass. Walk the chain looking only for typed
NavError (flagged via is_likely_browser_dead) or CdpError. Every
place we feed a chromium error into anyhow goes through one of
those types, so the typed downcasts cover the real cases without
the false-positive surface.

NavError::is_likely_browser_dead also drops its own substring
check on Cdp(e); any CdpError surfacing at the navigation layer
means the chromium-facing channel is the failing layer.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
MechaCat02
2026-05-30 20:41:59 +02:00
parent eaa5afda50
commit 9925f54695
4 changed files with 59 additions and 28 deletions
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backend/Cargo.lock generated
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@@ -1470,7 +1470,7 @@ checksum = "c41e0c4fef86961ac6d6f8a82609f55f31b05e4fce149ac5710e439df7619ba4"
[[package]]
name = "mangalord"
version = "0.36.6"
version = "0.36.7"
dependencies = [
"anyhow",
"argon2",