Fix #500

lib/gollum/frontend/public/gollum/livepreview/index.html

@@ -16,7 +16,7 @@
   <a id='toggle' class='edit' href='javascript:void(0)' onclick='jsm.toggleLeftRight();'><img src='images/lr_24.png' alt='Toggle left to right' title='Toggle left to right'></a>
 </div>
 
-<div class='editor_bg'></div>
+<div id='editor_bg' class='editor_bg'></div>
 <div class='toolpanel_bg'></div>
 
 <div id='commenttoolpanel' class='toolpanel edit' style='width: 500px; right: 0px; '>

lib/gollum/frontend/public/gollum/livepreview/js/livepreview.js

@@ -465,6 +465,11 @@ var applyTimeout = function () {
 
   win.jsm.resize = resize;
 
+  // remove editor_bg after loading because
+  // it'll cause problems if toggle left right is used
+  var ebg = doc.getElementById('editor_bg');
+  ebg.parentNode.removeChild(ebg);
+
   /*
      Resize can be called an absurd amount of times
      and will crash the page without debouncing.