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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 - CSS Triangles Rendering Regression affecting CSS Ribbons"
   href="https://bugs.webkit.org/show_bug.cgi?id=156121">156121</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>CSS Triangles Rendering Regression affecting CSS Ribbons
          </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>All
          </td>
        </tr>

        <tr>
          <th>URL</th>
          <td>http://www.maisonrichard.com/test
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </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&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>bruno&#64;hexanet.net
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>simon.fraser&#64;apple.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=275444" name="attach_275444" title="Visual of rendering defect on CSS Ribbon">attachment 275444</a> <a href="attachment.cgi?id=275444&amp;action=edit" title="Visual of rendering defect on CSS Ribbon">[details]</a></span>
Visual of rendering defect on CSS Ribbon

A rendering regression has ben introduced since at least Safari 8+ (perhaps as early as 7) which breaks CSS triangle shapes, as shown in the snapshot. If you visit the sample url on Safari 8 or 9, you can see the ribbon at the footer of the site does not render properly in Safari 8+. All other browsers including Webkit as far back as Safari 5.1 are showing the ribbon inner edges as expected.</pre>
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