title: GWT application not working in IE11
body: <p>I have an application that is using GWT 2.0.4 and running fine on IE8 browser. When opened in IE11, it is giving blank page with error message given below.</p>
  
  <pre><code>com.google.gwt.core.client.JavaScriptException : (TypeError) : Object doesn’t support property or method ‘attachEvent’
  </code></pre>
  
  <p>The exception was thrown because “attachEvent” is a deprecated function used in older versions of Internet Explorer. IE11 uses “addEventListener” method instead of “attachEvent”.</p>
  
  <p>The user.agent value was set to "ie6" so i changed it to "gecko1_8". After changing user agent it opens the application but the data in table(GWT-ext GridPanel) is getting overlapped over one another, scrollbars are missing and the alignment of menu bar is changed. </p>
  
  <p>It is working fine after enabling the compatibility mode. What is the proper workaround to run my app in IE11 ? Do i need to upgrade GWT and if yes then to which version supports IE11? I don't have to use "X-UA-Compatible=IE8" meta tag....Please help</p>