reset-embed-ie8.html

<script type="text/javascript">
  // This is to deal with IE and style leakages
  // see: http://stackoverflow.com/a/10557782/22466
  (function () {
 
    var head = document.getElementsByTagName('head')[0];
    var style = document.createElement('style');
    var completed = false;
 
    style.type = 'text/css';
    style.styleSheet.cssText = ':before,:after{content:none !important';
    head.appendChild(style);
    // wait till the iframe has loaded and the Yammer library is ready
    // before we remove this style change
    yam.on('all', function () {
      if (completed) { return; }
      completed = true;
      setTimeout(function(){
        head.removeChild(style);
      }, 0);
    });
  })();
</script>