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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Web Inspector: switching between Computed and Visual Styles panels causes internal error"
href="https://bugs.webkit.org/show_bug.cgi?id=160604">160604</a>
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<th>Summary</th>
<td>Web Inspector: switching between Computed and Visual Styles panels causes internal error
</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
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<th>Hardware</th>
<td>All
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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
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<th>Component</th>
<td>Web Inspector
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>mattbaker@apple.com
</td>
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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>Summary:
Switching between Computed and Visual Styles panels causes internal error.
Steps to Reproduce:
1. Open Inspector > Elements
2. Show Styles sidebar if necessary
3. Switch from Computed panel to Visual panel
=> [Error] TypeError: undefined is not an object (evaluating 'this._selectorSection.update')
refresh — VisualStyleDetailsPanel.js:64
_refreshPreservingScrollPosition — StyleDetailsPanel.js:143
nodeStylesRefreshed — StyleDetailsPanel.js:114
dispatch — Object.js:162
dispatchEventToListeners — Object.js:169
fetchedComputedStyle — DOMNodeStyles.js:228
...
4. When switching from Visual to Computed
=> [Error] TypeError: undefined is not an object (evaluating 'this._propertiesTextEditor.style = this.nodeStyles.computedStyle')
refresh — ComputedStyleDetailsPanel.js:130
_refreshPreservingScrollPosition — StyleDetailsPanel.js:143
nodeStylesRefreshed — StyleDetailsPanel.js:114
dispatch — Object.js:162
dispatchEventToListeners — Object.js:169
fetchedComputedStyle — DOMNodeStyles.js:228
...
Note:
I expected this to be a regression caused by <a href="https://trac.webkit.org/changeset/203253">https://trac.webkit.org/changeset/203253</a>, but it looks like it was broken earlier.</pre>
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