How to prevent showing background code in Drupal 7 admin? I am seeing the following screen when i am saving or updating a node in drupal 7 admin.

I am using Drupal 7 with Seven theme.I am seeing the following texts in white screen.To get the actual i need to click back button.


  [ {"command":"settings", "settings":{"basePath":"\u002F",
  "pathPrefix":"", "ajaxPageState":{"theme":"nbiz_train",
  "theme_token":"BVOiHIMf2BoQgMAltQtiv_GRDGBYoFOGNn3hJ8eJRxw"},
  "colorbox":{"opacity":"0.85", "current":"{current} of {total}",
  "previous":"« Prev", "next":"Next »", "close":"Close",
  "maxWidth":"98%", "maxHeight":"98%", "fixed":true,
  "mobiledetect":true, "mobiledevicewidth":"480px"}}, "merge":true} ]


How can i remove this error?
Sounds like it may be related to (caused by) JQuery Update, similar to what is described in "Cannot edit my views.. I get a JSON string?".

Maybe you want to (temporary) try any of these potential work arounds:


Disable or change the settings within JQuery Update (to see if it solves the issue).
Change the admin theme to any theme included in the Drupal version you downloaded.