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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - filter: drop-shadow rendering problem after animating"
   href="https://bugs.webkit.org/show_bug.cgi?id=167060">167060</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>filter: drop-shadow rendering problem after animating
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>Safari 10
          </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>Animations
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>mrsebastienleblanc&#64;icloud.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dino&#64;apple.com
          </td>
        </tr></table>
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        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=298866" name="attach_298866" title="Example of the bug">attachment 298866</a> <a href="attachment.cgi?id=298866&amp;action=edit" title="Example of the bug">[details]</a></span>
Example of the bug

I have applied a fliter:drop-shadow to a transparent PNG image on hover.
When I add a transition to animate the propriety, the drop-shadow does not respect the css rule after the animation.
This is a bug and was fixed in Chrome with Blink r155623. 
I can prevent this by adding a transform: translateZ(0); but this is not an ideal solution.
See the attached vidéo for a more visual explanation.</pre>
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