<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 - Scroll position jumps to the origin when scrolling without momentum at the end of a scroll snapping container"
   href="https://bugs.webkit.org/show_bug.cgi?id=165474">165474</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Scroll position jumps to the origin when scrolling without momentum at the end of a scroll snapping container
          </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>Macintosh
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>macOS 10.12
          </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>WebCore Misc.
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>wenson_hsieh&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Happens on ToT, after adopting AppKit scroll snapping animations.

There are two ways to reproduce this problem:
1. Go to <a href="http://whsieh.github.io/examples/iphone-overflow">http://whsieh.github.io/examples/iphone-overflow</a>
2. Scroll to the bottom, so that the last image completely fills the container
3. End the scroll gesture without momentum
 - This will occasionally result in the container's scrollTop jumping to 0.

Another way:
0. Go to any website
1. Navigate to <a href="http://whsieh.github.io/examples/iphone-mainframe">http://whsieh.github.io/examples/iphone-mainframe</a>
2. Scroll left slightly to reveal the previous page but release without momentum so the browser doesn't navigate to the previous page
 - This will result in the mainframe's scrollTop jumping to 0.</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>