<html>
<head>
<base href="https://bugs.webkit.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - HTMLMediaElement.prototype.canPlayType accounting for 250-750ms first loading theverge.com"
href="https://bugs.webkit.org/show_bug.cgi?id=158335">158335</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>HTMLMediaElement.prototype.canPlayType accounting for 250-750ms first loading theverge.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>WebKit Nightly Build
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>OS</th>
<td>Unspecified
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>Normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>Media Elements
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>joepeck@webkit.org
</td>
</tr>
<tr>
<th>CC</th>
<td>akling@apple.com, eric.carlson@apple.com, jer.noble@apple.com, jonlee@apple.com, koivisto@iki.fi, webkit-bug-importer@group.apple.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=280402" name="attach_280402" title="[IMAGE] Web Inspector Profile - 750ms in canPlayType">attachment 280402</a> <a href="attachment.cgi?id=280402&action=edit" title="[IMAGE] Web Inspector Profile - 750ms in canPlayType">[details]</a></span>
[IMAGE] Web Inspector Profile - 750ms in canPlayType
* SUMMARY
HTMLMediaElement.prototype.canPlayType accounting for 250-750ms first loading theverge.com.
See attached screenshot. With the steps to reproduce below I saw 250ms and 750ms spent in canPlayType for the first page load in a WebContentProcess.
* STEPS TO REPRODUCE
1. Open about:blank
2. Open Web Inspector
3. Show Timeline Tab
4. Enable Script & Events Timeline
5. Navigate the page to <<a href="http://www.theverge.com">http://www.theverge.com</a>>
6. Let timeline auto-record and stop recording
7. Show Script & Events Timeline, Call Trees, Bottom Up View
=> Many milliseconds were spent inside of HTMLMediaElement.prototype.canPlayType</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>