Bug 302901

Summary: [iOS] imported/w3c/web-platform-tests/fetch/security/dangling-markup-mitigation-data-url.tentative.sub.html is a flaky failure
Product: WebKit Reporter: Marta Darbinyan <darbinyan>
Component: New BugsAssignee: youenn fablet <youennf>
Status: RESOLVED FIXED    
Severity: Normal CC: webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Marta Darbinyan
Reported 2025-11-20 15:41:14 PST
The following test is constantly failing on iOS26 after OS upgrade on Opensource. imported/w3c/web-platform-tests/fetch/security/dangling-markup-mitigation-data-url.tentative.sub.html PASS <img id="dangling" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII="> -FAIL <img id="dangling" src="data:image/png;base64,&#10;iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII="> assert_equals: Height expected 1 but got 0 -FAIL <img id="dangling" src="data:image/png;base64,i&#10;VBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII="> assert_equals: Height expected 1 but got 0 +PASS <img id="dangling" src="data:image/png;base64,&#10;iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII="> +PASS <img id="dangling" src="data:image/png;base64,i&#10;VBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII="> PASS <img id="dangling" src="data:image/svg+xml;utf8,\n <svg width='1' height='1' xmlns='http://www.w3.org/2000/svg'>\n <rect width='100%' height='100%' fill='rebeccapurple'/>\n <rect x='10%' y='10%' width='80%' height='80%' fill='lightgreen'/>\n </svg>"> PASS <iframe id="dangling"\n src="data:text/html,\n <img\n onload='window.parent.postMessage(&quot;loaded&quot;, &quot;*&quot;);'\n onerror='window.parent.postMessage(&quot;error&quot;, &quot;*&quot;);'\n src='http://web-platform.test:8800/images/gr&#10;een-256x256.png'>\n ">\n </iframe> PASS <iframe id="dangling"\n src="data:text/html,\n <img\n onload='window.parent.postMessage(&quot;loaded&quot;, &quot;*&quot;);'\n onerror='window.parent.postMessage(&quot;error&quot;, &quot;*&quo Test history: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Ffetch%2Fsecurity%2Fdangling-markup-mitigation-data-url.tentative.sub.html&platform=ios Test result: https://ews-build.webkit.org/#/builders/154/builds/2868
Attachments
Radar WebKit Bug Importer
Comment 1 2025-11-20 15:41:59 PST
EWS
Comment 2 2025-11-20 16:58:31 PST
Test gardening commit 303364@main (38d0769811be): <https://commits.webkit.org/303364@main> Reviewed commits have been landed. Closing PR #54282 and removing active labels.
youenn fablet
Comment 3 2025-12-10 02:04:27 PST
EWS
Comment 4 2025-12-12 23:45:35 PST
Committed 304412@main (76bace0870c3): <https://commits.webkit.org/304412@main> Reviewed commits have been landed. Closing PR #55165 and removing active labels.
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