commit | 55f82d7bde45475d65ca1ca9f71d62f740517801 | [log] [tgz] |
---|---|---|
author | Ming-Ying Chung <mych@chromium.org> | Tue Sep 20 05:17:43 2022 |
committer | Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> | Tue Sep 20 05:27:15 2022 |
tree | febe99461b88373276046378648b48a39ef00d67 | |
parent | 8c1d56987b3b331f56c412757f155ed0a95f7886 [diff] |
[beacon-api] Fix renderer crashes caused by accessing unbound remote - Stacktrace: https://crbug.com/1364348#c5 - Details Explained: https://crbug.com/1364348#c7 When a document is unloaded, it's possible that a `PendingBeacon`'s `timeout_timer_` stays alive even after the ExecutionContext is gone (detached). In such case, `PendingBeacon::TimeoutTimerFired()` will lead to a crash due to accessing `remote_` which is unbound. The crash can be reliably reproduced by setting a short timeout in PendingGetBeacon ctor and unloads the document quickly. (But still not sure why a PendingGetBeacon() with default (negative) timeout can trigger `TimeoutTimerFired()`.) This CL makes `PendingBeacon` implements `ExecutionContextLifecycleObserver` and handles such case in `ContextDestroyed()` method. Also updates the sendondiscard web tests: - Before: PendingPostBeacon was not covered. Beacons with different timeout/backgroundTimeout were not covered. - After: better cover the behaviors of sending beacons on page discard with different timeout/backgroundTimeout values (which should not be used at all though) Bug: 1364348,1293679 Change-Id: I44edc6ddde20c75f8bbcca0d2b452504517530b1 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3901567 Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org> Commit-Queue: Ming-Ying Chung <mych@chromium.org> Cr-Commit-Position: refs/heads/main@{#1048952}
The web-platform-tests Project is a cross-browser test suite for the Web-platform stack. Writing tests in a way that allows them to be run in all browsers gives browser projects confidence that they are shipping software that is compatible with other implementations, and that later implementations will be compatible with their implementations. This in turn gives Web authors/developers confidence that they can actually rely on the Web platform to deliver on the promise of working across browsers and devices without needing extra layers of abstraction to paper over the gaps left by specification editors and implementors.
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