[Webkit-unassigned] [Bug 228197] New: [BigSur wk2 arm64] imported/w3c/web-platform-tests/html/cross-origin-opener-policy/header-parsing.https.html is a flaky failure.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228197

            Bug ID: 228197
           Summary: [BigSur wk2 arm64]
                    imported/w3c/web-platform-tests/html/cross-origin-open
                    er-policy/header-parsing.https.html is a flaky
                    failure.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ehutchison at apple.com

imported/w3c/web-platform-tests/html/cross-origin-opener-policy/header-parsing.https.html 

is a flaky fail on BigSur wk2 arm64.

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fcross-origin-opener-policy%2Fheader-parsing.https.html&platform=ios&platform=mac

Diff: 

--- /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/cross-origin-opener-policy/header-parsing.https-expected.txt
+++ /Volumes/Data/worker/bigsur-release-applesilicon-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/html/cross-origin-opener-policy/header-parsing.https-actual.txt
@@ -1,3 +1,5 @@
+
+Harness Error (TIMEOUT), message = null

 PASS unspecified document opening popup to https://localhost:9443 with COOP: "same%FForigin"
 PASS unspecified document opening popup to https://localhost:9443 with COOP: "same-origin;"
@@ -22,5 +24,5 @@
 FAIL unspecified document opening popup to https://localhost:9443 with COOP: "same-origin\t" assert_equals: name expected "" but got "unspecified_to_SAME_ORIGIN_same-origin\t"
 FAIL unspecified document opening popup to https://localhost:9443 with COOP: "same-origin;same-origin" assert_equals: name expected "" but got "unspecified_to_SAME_ORIGIN_same-origin;same-origin"
 FAIL unspecified document opening popup to https://localhost:9443 with COOP: "same-origin; foo=bar" assert_equals: name expected "" but got "unspecified_to_SAME_ORIGIN_same-origin;-foo=bar"
-PASS unspecified document opening popup to https://localhost:9443 with repeated COOP header
+TIMEOUT unspecified document opening popup to https://localhost:9443 with repeated COOP header Test timed out

Reproduced on r280189 using run-webkit-tests --iterations 500 --exit-after-n-failures 2 -f imported/w3c/web-platform-tests/html/cross-origin-opener-policy/header-parsing.https.html

First build found to fail on local test is r280152.

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