Strange TinyMCE problem - missing page error! Any ideas?

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Hi all,

Having a strange issue today with a site. When I try to edit and click the html view or link buttons on TinyMCE I'm getting my custom missing page single page template instead of the correct editing panel.

I've tried disabling the custom 404 page, cacheing, making new blocks, logging out etc. Very odd. I use this same theme on another site and it doesn't have the same issue so not sure what I've done. Only thing changed recently is adding a new user.

Stuck - any ideas?! :-/

UPDATE:
Getting
.../concrete/js/tiny_mce/themes/advanced/anchor 404 (Not Found)

in the console for any tiny_mce plugin it tries to load? Why would they suddenly disappear?

mrjcgoodwin
 
mrjcgoodwin replied on at Permalink Reply
mrjcgoodwin
Fixed - it was an error in my .htaccess file - a redirect to strip .html file extensions from old links to the site pre-C5 was also stripping the .htm extensions used by TinyMCE!

DOH!