<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 - Fixed position interaction broken with WKWebView when scrollView.bounce is false"
href="https://bugs.webkit.org/show_bug.cgi?id=158325">158325</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Fixed position interaction broken with WKWebView when scrollView.bounce is false
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>Safari 9
</td>
</tr>
<tr>
<th>Hardware</th>
<td>iOS
</td>
</tr>
<tr>
<th>OS</th>
<td>iOS 9.3
</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>Layout and Rendering
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>dvpdiner2@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>simon.fraser@apple.com
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=280380" name="attach_280380" title="iOS App demonstration case">attachment 280380</a> <a href="attachment.cgi?id=280380&action=edit" title="iOS App demonstration case">[details]</a></span>
iOS App demonstration case
In a page with a fixed position header that contains interactive elements like buttons or links when shown in a WKWebView with rubberbanding disabled, it is possible for the logical interaction position of the element to get out of sync with the visual position of the element.
This happens when you do a scroll action that would normally trigger the rubberbanding effect. It has the effect of moving the logical position of the element further down the page as if rubberbanding has occurred.
The visual position is correct.
I've attached a simple test case iOS project that can reproduce the issue. The code for the test case is also available on GitHub: <a href="https://github.com/dpogue/WKScrollTest">https://github.com/dpogue/WKScrollTest</a></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>