224192 2021-04-05 10:30:16 -0700 Web Inspector: Uncaught Exception: undefined is not an object (evaluating 'console.assert(listenersForEventType, this, eventType, listener, thisObject)') 2022-02-12 22:16:40 -0800 1 1 1 Unclassified WebKit Web Inspector WebKit Nightly Build All All RESOLVED WORKSFORME https://devinrousso.com/demo/WebKit/bipbop-cc-subtitles-chapters.html InRadar P2 Normal --- 1 hi webkit-unassigned bfulgham hi inspector-bugzilla-changes webkit-bug-importer oldest_to_newest 1747003 0 hi 2021-04-05 10:30:16 -0700 Uncaught Exception in Web Inspector. Steps to Reproduce: 0. make sure the Sources Tab is selected before Web Inspector is opened 1. inspect <https://devinrousso.com/demo/WebKit/bipbop-cc-subtitles-chapters.html> 2. switch to the Elements Tab Uncaught Exceptions: ----------------------- - undefined is not an object (evaluating 'console.assert(listenersForEventType, this, eventType, listener, thisObject)') (at Object.js:84:23) removeEventListener @ Object.js:84:23 ondetach @ DOMTreeElement.js:462:51 _detach @ TreeElement.js:294:26 removeChildAtIndex @ TreeOutline.js:341:22 _updateChildren @ DOMTreeElement.js:558:36 _updateChildren @ [native code] mycallback @ DOMNode.js:604:25 mycallback @ [native code] _dispatchResponseToCallback @ Connection.js:152:27 _dispatchResponse @ Connection.js:122:45 dispatch @ Connection.js:77:35 dispatchMessageFromTarget @ TargetManager.js:176:39 dispatchMessageFromTarget @ TargetObserver.js:47:51 _dispatchEvent @ Connection.js:210:26 dispatch @ Connection.js:79:32 dispatch @ InspectorBackend.js:232:52 ? @ MessageDispatcher.js:42:34 Additional Details: cause --> An uncaught exception was thrown while dispatching response callback for command DOM.requestChildNodes. ----------------------- Notes: Inspected URL: https://devinrousso.com/demo/WebKit/bipbop-cc-subtitles-chapters.html Loading completed: true Frontend User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Dispatch Source: Protocol Event Protocol Event: {"method":"Target.dispatchMessageFromTarget","params":{"targetId":"page-23","message":"{\"result\":{},\"id\":215}"}} Dispatch Source: Protocol Command Response Protocol Command Response: {"result":{},"id":215} Protocol Command Request: {"id":215,"method":"DOM.requestChildNodes","params":{"nodeId":47}} 1747005 1 webkit-bug-importer 2021-04-05 10:33:32 -0700 <rdar://problem/76223103>