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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - WebInspector: Can't open a new tab: Uncaught Exception: TypeError: this.isNewTabWithTypeAllowed is not a function. (In 'this.isNewTabWithTypeAllowed(tabClass.Type)', 'this.isNewTabWithTypeAllowed' is undefined)"
   href="https://bugs.webkit.org/show_bug.cgi?id=152471#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - WebInspector: Can't open a new tab: Uncaught Exception: TypeError: this.isNewTabWithTypeAllowed is not a function. (In 'this.isNewTabWithTypeAllowed(tabClass.Type)', 'this.isNewTabWithTypeAllowed' is undefined)"
   href="https://bugs.webkit.org/show_bug.cgi?id=152471">bug 152471</a>
              from <span class="vcard"><a class="email" href="mailto:nvasilyev&#64;apple.com" title="Nikita Vasilyev &lt;nvasilyev&#64;apple.com&gt;"> <span class="fn">Nikita Vasilyev</span></a>
</span></b>
        <pre>This happens when WebInspector._updateNewTabButtonState gets called from
listenersForThisEvent[i].listener.call(listenersForThisEvent[i].thisObject, event);

<a href="https://github.com/WebKit/webkit/blob/7d256676418078205157678bf382fbdea88bc9bd/Source/WebInspectorUI/UserInterface/Base/Object.js#L155">https://github.com/WebKit/webkit/blob/7d256676418078205157678bf382fbdea88bc9bd/Source/WebInspectorUI/UserInterface/Base/Object.js#L155</a></pre>
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