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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - History.js (it use native window.history) crash application"
   href="https://bugs.webkit.org/show_bug.cgi?id=145405">145405</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>History.js (it use native window.history) crash application
          </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>OS</th>
          <td>Unspecified
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>Critical
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>History
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>bear-sasha1&#64;yandex.ru
          </td>
        </tr></table>
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        <pre>Created <span class=""><a href="attachment.cgi?id=253784" name="attach_253784" title="screenshot of chrome://verison">attachment 253784</a> <a href="attachment.cgi?id=253784&amp;action=edit" title="screenshot of chrome://verison">[details]</a></span>
screenshot of chrome://verison

I have a problem with history (browser doesn't firing event 'onpopstate' on use code history.go(-1)):

Steps for reproduce:
1) go to www.site.ru (this is fake site and he doesn't work, just for example)
2) go to www.site.ru/employee
3) open information about employee by click for a link www.site.ru/employee/id open modal window, code:
   History.pushState({}, 'Title', 'URL')
4) When modal window was hidden (bootstrap event hidden.bs.modal) use code:
   History.back();

And page stoped work and url stop on this www.site.ru/employee/id, but must go to www.site.ru/employee

Usually, all work is very good, but sometimes Google Chrome browser hangs (1 time from 1, 1 from 10, 1 from 30 and other).

I can reproduce that sometimes and app is hangs.

Some information about History.js variables:

History.busy() = true
events popstate/statechange don't work
History.getState().id == history.state</pre>
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