title: Strange behavior characters afer submit in IE (it doen't happen in FF)
body: <p>I'm extending an existing code based on Struts2 (and Struts2-jquery plugin, but I don't think this is the reason of the problem).</p>
  
  <p>I found a strange behavior with Internet Explorer 9 (I don't know if the same issue exists also for the previous versions of IE) that doesn't appear in FireFox.</p>
  
  <p>I've a page with some input fields and an upload function used to upload files on the server. When the user upload a file, this is sent to the server by a form submit, then the Action return to the same page (reload the page). If I fill the input boxes using accented letters, when the page is reloaded after the form submit, instead of the accented letters appears a "square" (it is <code>&amp;#65533;</code>). This happens only in IE, not in FireFox (where the characters remain the same I've before the submit).</p>
  
  <p>In the <code>web.xml</code> and <code>struts.xml</code> files, there are not encoding configuration for the JSP.</p>
  
  <pre class="lang-jsp prettyprint-override"><code>&lt;%@ taglib prefix="s" uri="/struts-tags"%&gt;
  &lt;%@ taglib prefix="sj" uri="/struts-jquery-tags"%&gt;
  &lt;s:form id="actionForm" name="actionForm"
      theme="simple" cssClass="yform"
      action="changeAction" acceptcharset="UTF-8"&gt;
      &lt;table&gt;
          &lt;tr&gt;
              &lt;td&gt;field1&lt;/td&gt;
              &lt;td&gt;
                  &lt;s:textfield id="field1" name="field1" maxlength="2048" value="%{field1}" disabled="false" size="98" required="true" /&gt;
              &lt;/td&gt;
          &lt;/tr&gt;
          &lt;tr&gt;
              &lt;td&gt;&lt;s:file name="docFacFileUploaded" size="50" /&gt;&lt;/td&gt;
              &lt;td&gt;
                  &lt;sj:submit targets="main_section" id="uploadFileButton" value="File upload" button="true" indicator="indLoad" /&gt;
                  &lt;img id="indLoad" src="indicator.gif" alt="Loading..." style="display:none" /&gt;
              &lt;/td&gt;
          &lt;tr&gt;
          &lt;/tr&gt;
              &lt;td&gt;field2&lt;/td&gt;
              &lt;td&gt;
                  &lt;s:textfield id="field2" name="field2" maxlength="2048" value="%{field2}" disabled="false" size="98" required="true" /&gt;
              &lt;/td&gt;
          &lt;/tr&gt;
          &lt;tr&gt;
              &lt;td&gt;
                  &lt;sj:submit targets="main_section" id="salvaButton" value="Salva" button="true" indicator="ind" /&gt;
                  &lt;img id="ind" src="indicator.gif" alt="Loading..." style="display:none" /&gt;
              &lt;/td&gt;
          &lt;/tr&gt;
      &lt;/table&gt;
  &lt;/s:form&gt;
  </code></pre>