Hi everyone,
In order to improve site security, we are no longer allowing ordinary pages to be loaded as javascript (That is, ?action=raw&ctype=text/javascript ). Only pages that are (fully) protected, in the MediaWiki: namespace, or is a user JS subpage can be loaded with the ctype=text/javascript
We made this change because there was a large number of users accidentally loading unprotected page in their JS, often as a result of copying scripts between languages.