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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - With a WKWebView's scroll view, a negative content offset y value is reset to 0 if the web view's frame height is increased."
href="https://bugs.webkit.org/show_bug.cgi?id=161880">161880</a>
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<th>Summary</th>
<td>With a WKWebView's scroll view, a negative content offset y value is reset to 0 if the web view's frame height is increased.
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
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<th>Version</th>
<td>WebKit Nightly Build
</td>
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<th>Hardware</th>
<td>iOS
</td>
</tr>
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<th>OS</th>
<td>iOS 9.3
</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>
</tr>
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<th>Component</th>
<td>New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
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<th>Reporter</th>
<td>gchatz@chromium.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=288628" name="attach_288628" title="Test app">attachment 288628</a> <a href="attachment.cgi?id=288628&action=edit" title="Test app">[details]</a></span>
Test app
Summary:
With a WKWebView's scroll view, a negative content offset y value is reset to 0 if the web view's frame height is increased.
Steps to Reproduce:
1. Set content offset of a WKWebView to a negative value.
2. Set the WKWebView's height to a bigger value.
3. Observe the new content offset of the web view.
(See test app)
Expected Results:
The content offset should stay negative.
Actual Results:
The content offset is changed to 0.
Version:
Since at least iOS 9. Present in iOS 10.
Configuration:
iPhones and iPads</pre>
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