ckeditor loads all the page html while editing not only the body field
I had this problem some month ago, one solution with disabling search module was good, but now i've needed search-box working, so i've made a research and found another thing.
In my case the problem was Plugin for inserting drupal teaser and page breaks. I've had this plugin switched off, but button &quot;DrupalBreak&quot; was added to Used button list.
solution 1:
Go to CKEditor profile settings page at '/admin/config/content/ckeditor/edit/[profile_name]'
Switch of &quot;Plugin for inserting Drupal teaser and page breaks&quot; in appearance settings.
Make sure, that &quot;DrupalBreak&quot; button is not in use.
solution 2:
The problem most likely lies within the search-module's cronjob to index the page. This cronjob kind of views the nodes it wants to index. If you use hook_node_view() anywhere in your modules and the cron-user gets an error or gets lead anywhere by a drupal_goto(), the behaviour you described is the result.
Solution: Disable the search-module if you don't need it. If you need it though, check the $view_mode in your hook_node_view()-implementations. If it says &quot;search_index&quot;, no redirects should be made. (the easiest way is to just return $node if($view_mode == &quot;search_index&quot;)