[Webkit-unassigned] [Bug 176633] New: Uncaught Exception: TypeError: this._heapSnapshot.addEventListener is not a function.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=176633

            Bug ID: 176633
           Summary: Uncaught Exception: TypeError:
                    this._heapSnapshot.addEventListener is not a function.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
               URL: http://mashable.com/2017/09/05/samsung-galaxy-note8-re
                    view/#yN9xuoOmBgqy
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: msaboff at apple.com
                CC: inspector-bugzilla-changes at group.apple.com

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Inspected URL:        http://mashable.com/2017/09/05/samsung-galaxy-note8-review/#yN9xuoOmBgqy

Uncaught Exceptions:
 - TypeError: this._heapSnapshot.addEventListener is not a function. (In 'this._heapSnapshot.addEventListener(WI.HeapSnapshotProxy.Event.CollectedNodes, this._heapSnapshotCollectedNodes, this)', 'this._heapSnapshot.addEventListener' is undefined) (at HeapSnapshotDataGridTree.js:35:44)
    HeapSnapshotDataGridTree @ HeapSnapshotDataGridTree.js:35:44
    ? @ HeapSnapshotInstancesDataGridTree
    HeapSnapshotContentView @ HeapSnapshotContentView.js:43:81
    HeapSnapshotInstancesContentView @ HeapSnapshotContentView.js:127:14
    instancesContentView @ HeapSnapshotClusterContentView.js:113:81
    _showContentViewForIdentifier @ HeapSnapshotClusterContentView.js:215:37
    restoreFromCookie @ HeapSnapshotClusterContentView.js:161:43
    _restoreFromCookie @ BackForwardEntry.js:110:43
    prepareToShow @ BackForwardEntry.js:80:32
    _showEntry @ ContentViewContainer.js:446:28
    showBackForwardEntryForIndex @ ContentViewContainer.js:162:28
    showContentView @ ContentViewContainer.js:138:42
    showContentViewForRepresentedObject @ ContentViewContainer.js:75:29
    showHeapSnapshotDiff @ HeapAllocationsTimelineView.js:176:71
    ? @ HeapAllocationsTimelineView.js:470:38
    _handleMessage @ HeapSnapshotWorkerProxy.js:136:21
    _handleMessage @ [native code]
-------

* STEPS TO REPRODUCE
1. What were you doing? Include setup or other preparations to reproduce the exception.
2. Include explicit, accurate, and minimal steps taken. Do not include extraneous or irrelevant steps.

* NOTES
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