Bug 227761 – [ Mac wk2 ] imported/w3c/web-platform-tests/beacon/beacon-cors.https.window.html is a flaky failure

• Status: NEW
• Component: New Bugs

[Eric Hutchison]

imported/w3c/web-platform-tests/beacon/beacon-cors.https.window.html

is a flaky failure. Reproduced issue on r279642. I will bisect and update findings.

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fbeacon%2Fbeacon-cors.https.window.html&platform=mac

--- /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/beacon/beacon-cors.https.window-expected.txt
+++ /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/beacon/beacon-cors.https.window-actual.txt
@@ -2,7 +2,7 @@
 PASS /common/redirect.py does not support CORS
 PASS cross-origin, CORS-safelisted: type = string
 PASS cross-origin, CORS-safelisted: type = arraybuffer
-PASS cross-origin, CORS-safelisted: type = form
+FAIL cross-origin, CORS-safelisted: type = form assert_true: timeout expected true got false
 PASS cross-origin, CORS-safelisted: type = blob
 PASS cross-origin, non-CORS-safelisted: failure case (with redirect)
 PASS cross-origin, non-CORS-safelisted: failure case (without redirect)

[Radar WebKit Bug Importer]

<rdar://problem/80281892>

[Eric Hutchison]

Update in findings: Reproduced test failure locally on r279224. 

--- /Volumes/Data/Builds/279224/layout-test-results/imported/w3c/web-platform-tests/beacon/beacon-cors.https.window-expected.txt
+++ /Volumes/Data/Builds/279224/layout-test-results/imported/w3c/web-platform-tests/beacon/beacon-cors.https.window-actual.txt
@@ -1,9 +1,9 @@
 
 PASS /common/redirect.py does not support CORS
 PASS cross-origin, CORS-safelisted: type = string
-PASS cross-origin, CORS-safelisted: type = arraybuffer
+FAIL cross-origin, CORS-safelisted: type = arraybuffer assert_true: timeout expected true got false
 PASS cross-origin, CORS-safelisted: type = form
-PASS cross-origin, CORS-safelisted: type = blob
+FAIL cross-origin, CORS-safelisted: type = blob assert_true: timeout expected true got false
 PASS cross-origin, non-CORS-safelisted: failure case (with redirect)
 PASS cross-origin, non-CORS-safelisted: failure case (without redirect)
 PASS cross-origin, non-CORS-safelisted[credentials=false]

[Ben Schwartz]

UPDATE:

This issue persists on the reported platform at ToT. Reproduced on macOS Ventura (13.5, 22G74/arm64) using the following command:

rwt --clobber-old-results --verbose --iterations 100 --child-processes 10 -f --exit-after-n-failures 1 imported/w3c/web-platform-tests/beacon/beacon-cors.https.window.html

[EWS]

Test gardening commit 267681@main (3b8575bdb69d): <https://commits.webkit.org/267681@main>

Reviewed commits have been landed. Closing PR #17490 and removing active labels.