[Webkit-unassigned] [Bug 196420] New: Uncaught Exception: null is not an object (evaluating 'this.ownerDocument.frameIdentifier')

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=196420

            Bug ID: 196420
           Summary: Uncaught Exception: null is not an object (evaluating
                    'this.ownerDocument.frameIdentifier')
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
               URL: https://www.reddit.com/
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joepeck at webkit.org
                CC: inspector-bugzilla-changes at group.apple.com

Uncaught Exception: null is not an object (evaluating 'this.ownerDocument.frameIdentifier')

Steps to Reproduce:
1. Start a timeline recording on reddit.com
2. Scroll around a bit / interact
  => Exception

-------
Inspected URL:        https://www.reddit.com/
Dispatch Source:      Protocol Event

Protocol Event:
{"method":"DOM.didFireEvent","params":{"nodeId":436,"eventName":"canplaythrough","timestamp":37.480989417003}}

Uncaught Exceptions:
 - null is not an object (evaluating 'this.ownerDocument.frameIdentifier') (at DOMNode.js:186:59)
    frameIdentifier @ DOMNode.js:186:59
    frame @ DOMNode.js:192:68
    addRecord @ TimelineRecording.js:322:49
    _addRecord @ TimelineManager.js:830:40
    _handleDOMNodeDidFireEvent @ TimelineManager.js:1247:24
    dispatch @ Object.js:165:30
    dispatchEventToListeners @ Object.js:180:21
    _addDOMEvent @ DOMNode.js:805:38
    didFireEvent @ DOMNode.js:755:26
    didFireEvent @ DOMManager.js:164:26
    didFireEvent @ DOMObserver.js:117:35
    dispatchEvent @ InspectorBackend.js:340:42
    _dispatchEvent @ Connection.js:195:32
    dispatch @ Connection.js:72:32
    dispatchMessageFromTarget @ TargetManager.js:101:35
    dispatchMessageFromTarget @ TargetObserver.js:42:51
    dispatchEvent @ InspectorBackend.js:340:42
    _dispatchEvent @ Connection.js:195:32
    dispatch @ Connection.js:72:32
    dispatch @ InspectorBackend.js:178:52
    dispatchNextQueuedMessageFromBackend @ MessageDispatcher.js:42:34

Additional Details:
    cause --> An uncaught exception was thrown while handling event: DOM.didFireEvent

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