title: SharePoint 2013 Updatepanel Idle
body: <p>I have implemented AJAX update panel on my SharePoint visual web part. The web part contains two dropdownlists and and a grid surrounded by update panel.</p>
  
  <p>The page is working fine in Chrome/Safari/IE until I leave the page idle for a while. The page will then cause a full postback in Chrome/Safari, but not in IE. In IE its still working perfectly. I've looked at the requests in Fiddler and see that SharePoint is making a request to /_login/default.aspx?ReturnUrl=%2fSitePages%2fIssues.aspx</p>
  
  <p>In IE this does not happen. Have anyone else encountered this problem. I've been looking for a solution the last two days and haven't found anything.</p>