Uncaught Exception: TypeError: this._heapSnapshot.addEventListener is not a function.

[Michael Saboff]

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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]
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* 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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[Joseph Pecoraro]

Created attachment 320306 [details]
[PATCH] Proposed Fix

[Michael Saboff]

Comment on attachment 320306 [details]
[PATCH] Proposed Fix

r=me

[WebKit Commit Bot]

Comment on attachment 320306 [details]
[PATCH] Proposed Fix

Clearing flags on attachment: 320306

Committed r221800: <http://trac.webkit.org/changeset/221800>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Radar WebKit Bug Importer]

<rdar://problem/34694521>