WordPress Image Upload Fix
On WordPress 2.7, if you use the image uploader to add images to posts, you may get this error:
Precondition Failed
The precondition on the request for the URL /blog/wp-admin/media-upload.php evaluated to false. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
It generally goes without saying, however, make a backup of your .htaccess file before editing it.
Add this to your .htaccess file in the root of your website to fix this issue:
<IfModule mod_security.c> SecFilterEngine Off SecFilterScanPOST Off </IfModule>








Perfect! Thank you! (I was trying to install to a subdomain and had this exact problem.)
[...] I had an error about some precondition thing. I asked for help in the CMF forum and Turnip found just what I needed. To make a long story short, it is working. Thanks to Turnip for the [...]
It worked for me too. Thank you. I’ve been having a problem with loading media files for awhile.
Thank you! Why dont they put this on the WordPress site, or make it easy to find?!