Bug 304371

Summary: Internal error in web inspector when viewing layers. Uncaught Exception: TypeError: undefined is not an object (evaluating 'target.PageAgent.overrideSetting')
Product: WebKit Reporter: Nathan Solomon <nathan_solomon>
Component: Web InspectorAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: inspector-bugzilla-changes, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: All   
OS: All   
URL: https://codepen.io/balepas/pen/ogbyvxW
Attachments:
Description Flags
Video of repro steps none

Nathan Solomon
Reported 2025-12-17 17:04:19 PST
Created attachment 477774 [details] Video of repro steps Uncaught Exception in Web Inspector. Steps to Reproduce: Simply open the url, go to Layers, then click the button that allows you to view paint counts of each layer. the web inspector will crash consistently. Uncaught Exceptions: ----------------------- - TypeError: undefined is not an object (evaluating 'target.PageAgent.overrideSetting') (at LayerTreeManager.js:116:33) compositingBordersVisible @ LayerTreeManager.js:116:33 _handleCompositingBordersButtonClicked @ Layers3DContentView.js:407:28 dispatch @ Object.js:134:35 dispatchEventToListeners @ Object.js:142:17 _buttonPressed @ ButtonNavigationItem.js:208:38 _mouseClicked @ ButtonNavigationItem.js:187:28 ----------------------- Notes: Inspected URL: https://codepen.io/balepas/pen/ogbyvxW Loading completed: true Frontend User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Occurred on 304617@main
Attachments
Video of repro steps (14.34 MB, video/quicktime)
2025-12-17 17:04 PST, Nathan Solomon 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2025-12-17 17:04:27 PST
<rdar://problem/166746536>
Anuj Panta
Comment 2 2025-12-19 15:52:03 PST
Pull request: https://github.com/WebKit/WebKit/pull/55733
EWS
Comment 3 2025-12-19 18:42:29 PST
Committed 304799@main (b35ee7ad62e9): <https://commits.webkit.org/304799@main> Reviewed commits have been landed. Closing PR #55733 and removing active labels.
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