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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 - JIT bug - fails when inspector closed, works when open"
   href="https://bugs.webkit.org/show_bug.cgi?id=145243">145243</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>JIT bug - fails when inspector closed, works when open
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>528+ (Nightly build)
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>URL</th>
          <td>http://rawgit.com/es-shims/es6-shim/master/test/index.html
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Blocker
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P1
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>JavaScriptCore
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>ljharb&#64;gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>fpizlo&#64;apple.com, utatane.tea&#64;gmail.com
          </td>
        </tr></table>
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        <div>
        <pre>When accessing <a href="http://rawgit.com/es-shims/es6-shim/master/test/index.html">http://rawgit.com/es-shims/es6-shim/master/test/index.html</a> on a current Nightly revision, it will fail with a bunch of `obj.__flags` errors (something in mocha/chai). However, when the dev inspector is *open*, they all/mostly pass as expected (some failures in older revisions are fine).

This appears to have been introduced by r182007, r182008, or r182009 - <a href="http://trac.webkit.org/changeset/182009">http://trac.webkit.org/changeset/182009</a> looks related perhaps?

Obviously this is super critical, and since I have no idea how it's broken I have no idea how many things this could break across the web :-)</pre>
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