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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - REGRESSION (r178097): JavaScript TypeError after clicking on compose button in Yahoo Mail"
href="https://bugs.webkit.org/show_bug.cgi?id=146515">146515</a>
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<th>Summary</th>
<td>REGRESSION (r178097): JavaScript TypeError after clicking on compose button in Yahoo Mail
</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>528+ (Nightly build)
</td>
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<th>Hardware</th>
<td>iOS
</td>
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<th>URL</th>
<td>http://mail.yahoo.com
</td>
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Keywords</th>
<td>Regression
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P1
</td>
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<th>Component</th>
<td>WebCore Misc.
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>dbates@webkit.org
</td>
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<th>CC</th>
<td>darin@apple.com, gyuyoung.kim@webkit.org, mitz@webkit.org, sam@webkit.org, shiva.jm@samsung.com
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<pre>Created <span class=""><a href="attachment.cgi?id=255925" name="attach_255925" title="Example - Call select.add() with more arguments than needed">attachment 255925</a> <a href="attachment.cgi?id=255925&action=edit" title="Example - Call select.add() with more arguments than needed">[details]</a></span>
Example - Call select.add() with more arguments than needed
Cannot compose a new email in Yahoo Mail when using an iPhone user agent string and WebKit r178097 or later. In particular, a JavaScript TypeError is thrown after clicking on the compose button.
On a Mac, you can reproduce this issue by performing the following:
1. Open Safari with WebKit r178097 or later.
2. Open a new window.
4. Ensure the Develop menu is enabled (*) and choose Develop > User Agent > Safari iOS 8.1 - iPhone.
5. Navigate to mail.yahoo.com and sign in.
5. Click the compose button.
A JavaScript TypeError is thrown and caught by Yahoo Mail's code as indicated by the presence of the following line in the Web Inspector console:
"Error Reported (presentModalView): Type error"
(*) You can enable the Develop menu by choosing Safari > Preferences to open the Safari preferences window. In the preferences window, click Advanced in the toolbar. Then check the checkbox "Show Develop menu in menu bar".</pre>
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