title: When form target a html and action another html in IE11, it opens two pages at last
body: <p><strong>This problem is happened only in Windows2012R2.In Windows8.1 ,it's OK.</strong></p>
  
  <hr>
  
  <p>This is my first time to ask question at stackoverflow. If I do something rude here, please forgive me.:）</p>
  
  <p>There are three html files.a.html,b.html and test.html.
  In test.html,there is a from which has a submit button.IF you click the button,it will first execute a js function named "goOpeEvtURL".In this function, it will open a window (a.html).
  The form of test.html,has an attribute name action which's value is "b.html" and also has an attribute named "trget" which's value is "a.html".</p>
  
  <p>If we open the test.html and click the [Click] button, it  will popup only one  new window which shows "Result of b!!"</p>
  
  <p>I tryed in IE10 and firefox,the result is "Result of b!!"
  But, when I run this test.html in IE11 and click the [Click] button,it popups two windows!
  one showed "Result of a!!" and another showed "Result of b!!"</p>
  
  <p>I wish it will just popup  one window("Result of b!!" showed) in IE11.
  How can I do lick that? T_T</p>
  
  <hr>
  
  <p>a.html → form's target value</p>
  
  <pre><code>&lt;HTML&gt;
  &lt;HEAD&gt;
  &lt;META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=shift_jis"&gt;
  &lt;META HTTP-EQUIV="Pragma" CONTENT="no-cache"&gt;
  &lt;META HTTP-EQUIV="Cache-Control" CONTENT="no-cache"&gt;
  &lt;META HTTP-EQUIV="Expires" CONTENT="-1"&gt;
  &lt;META HTTP-EQUIV="X-UA-Compatible" CONTENT="IE=EmulateIE7"&gt;
  &lt;TITLE&gt;a.html&lt;/TITLE&gt;
  &lt;SCRIPT Language="JavaScript"&gt;
  &lt;/SCRIPT&gt;
  &lt;/HEAD&gt;
  &lt;BODY class="body_base"&gt;
  &lt;STRONG&gt;Result of a!!&lt;/STRONG&gt;&lt;BR&gt;
  &lt;HTML&gt;
  </code></pre>
  
  <hr>
  
  <p>b.html → form's action value</p>
  
  <pre><code>&lt;HTML&gt;
  &lt;HEAD&gt;
  &lt;META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=shift_jis"&gt;
  &lt;META HTTP-EQUIV="Pragma" CONTENT="no-cache"&gt;
  &lt;META HTTP-EQUIV="Cache-Control" CONTENT="no-cache"&gt;
  &lt;META HTTP-EQUIV="Expires" CONTENT="-1"&gt;
  &lt;META HTTP-EQUIV="X-UA-Compatible" CONTENT="IE=EmulateIE7"&gt;
  &lt;TITLE&gt;b.html&lt;/TITLE&gt;
  &lt;SCRIPT Language="JavaScript"&gt;
  &lt;/SCRIPT&gt;
  &lt;/HEAD&gt;
  &lt;BODY class="body_base"&gt;
  &lt;STRONG&gt;Result of b!!&lt;/STRONG&gt;&lt;BR&gt;
  </code></pre>
  
  <h2>    </h2>
  
  <p>test.html → the html which has form in it.</p>
  
  <pre><code>&lt;HTML&gt;
  &lt;HEAD&gt;
  &lt;META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=shift_jis"&gt;
  &lt;META HTTP-EQUIV="Pragma" CONTENT="no-cache"&gt;
  &lt;META HTTP-EQUIV="Cache-Control" CONTENT="no-cache"&gt;
  &lt;META HTTP-EQUIV="Expires" CONTENT="-1"&gt;
  &lt;META HTTP-EQUIV="X-UA-Compatible" CONTENT="IE=EmulateIE7"&gt;
  &lt;TITLE&gt;test&lt;/TITLE&gt;
  &lt;SCRIPT Language="JavaScript"&gt;
  function goOpeEvtURL(kind)
  {
  
      SubmitFlag = true;
      OTHERWIN = window.open("a.html", "aaaaa","width=" + 300 + ",height="
          + 400 +         "menubar=no,toolbar=no,status=yes,scrollbars=yes,,resizable=yes,,top=200,left=200");
      return;
  }
  
  &lt;/SCRIPT&gt;
  &lt;/HEAD&gt;
  &lt;BODY class="body_base"&gt;
  &lt;FORM METHOD="POST" ACTION="b.html" 
  NAME="NODESECLET"  onReset='return false;' onSubmit="return SubmitFlag;" TARGET="aaaaa"&gt;
  &lt;INPUT TYPE="submit" NAME="Do_Corrective" VALUE="Click" onClick="goOpeEvtURL();return     true;" class="button_trevent"&gt;
  &lt;FORM&gt;
  &lt;HTML&gt;
  </code></pre>