Since last wordpress update to 3.5.2 the visual composer and tinyMCE stopped working and I get a javascript error at runtime when trying to load the editor.
SyntaxError: Invalid character 'u0031' wp-tinymce.php:1
post.php:1531 ReferenceError: Can’t find variable: tinyMCE
post.php:1581 ReferenceError: Can’t find variable: tinyMCE
load-scripts.php:194 ReferenceError: Can’t find variable: tinyMCE
When i try to load tinymce.php with the code referenced from /wp-admin/post.php?post=125&action=edit
http://www.webking.se/wp-includes/js/tinymce/wp-tinymce.php?c=1&ver=358-24486
The characters look all corrupt, but if I remove the querystring
http://www.webking.se/wp-includes/js/tinymce/wp-tinymce.php
it looks readable. Any idea what this can depend on? It worked perfect before the latest WordPress upgrade.
Adding
define( 'CONCATENATE_SCRIPTS', false );to wp-config.php solved the problem.The problem seems related to compression.