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<base href="https://bugs.webkit.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Web Inspector: Assertion failed: !this._items.has(item) (at Collection.js:50)"
href="https://bugs.webkit.org/show_bug.cgi?id=168212">168212</a>
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<th>Summary</th>
<td>Web Inspector: Assertion failed: !this._items.has(item) (at Collection.js:50)
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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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>OS</th>
<td>All
</td>
</tr>
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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>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>bburg@apple.com
</td>
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<th>CC</th>
<td>inspector-bugzilla-changes@group.apple.com
</td>
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<pre>Stack trace:
[Error] Assertion Failed
add (Collection.js:50)
_scriptWasAdded (ResourceSidebarPanel.js:324)
dispatch (Object.js:170)
dispatchEventToListeners (Object.js:177)
_debugUIEnabledDidChange (DebuggerManager.js:1190)
dispatch (Object.js:170)
dispatchEventToListeners (Object.js:177)
(anonymous function) (Bootstrap.js:58)
dispatch (Object.js:170)
dispatchEventToListeners (Object.js:177)
value (Setting.js:91)
(anonymous function) (Bootstrap.js:33)
_handleKeyDown (KeyboardShortcut.js:84)
Steps to reproduce:
1. Use an engineering build
2. Toggle DebugUI on and off (cmd-opt-shift-d)</pre>
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