Thread:Project:Support desk/Skin and load.php error in Chrome and others/reply (2)

You shouldn't need to set a content-type for load.php URLs, MediaWiki should send the correct content-type.

The URL scheme of the wiki is that it's published at /w and it has rewrite rules for short URLs at /wiki. But your .htaccess has rules on lines 14, 17, 19 and 21 that matches the start of the URL (because they have the "^" character) but no /w is present. From my understanding, from line 12 to the end shouldn't be necessary.