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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Uncaught Exception: TypeError: null is not an object (evaluating 'this.treeOutline._visible')"
href="https://bugs.webkit.org/show_bug.cgi?id=164795">164795</a>
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<th>Summary</th>
<td>Uncaught Exception: TypeError: null is not an object (evaluating 'this.treeOutline._visible')
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>WebKit Nightly Build
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>URL</th>
<td>file:///Users/whsieh/pweb/examples/playback.html
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>Web Inspector
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>wenson_hsieh@apple.com
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<th>CC</th>
<td>bburg@apple.com, joepeck@webkit.org, mattbaker@apple.com, nvasilyev@apple.com, timothy@apple.com, webkit-bug-importer@group.apple.com
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<pre>-------
Inspected URL: file:///Users/whsieh/pweb/examples/playback.html
Loading completed: true
Frontend User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13) AppleWebKit/603.1.13+ (KHTML, like Gecko)
Uncaught Exceptions:
- TypeError: null is not an object (evaluating 'this.treeOutline._visible') (at DOMTreeElement.js:364:64)
_updateChildren @ DOMTreeElement.js:364:64
_updateChildren @ [native code]
getChildNodes @ DOMNode.js:462:25
updateChildren @ DOMTreeElement.js:336:45
_updateModifiedNodes @ DOMTreeUpdater.js:124:45
performWork @ Utilities.js:1356:47
-------
* 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
Document any additional information that might be useful in resolving the problem, such as screen shots or other included attachments.</pre>
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