XF 1.1 Xenforo .htaccess & subdomain

[WiseHollow]

I have my Xenforo installation running on a subdomain and I created an .htaccess file as instructed by my webhosts. The urls for the website mostly work fine except that when trying to attach an image or video to a thread, instead of the standard window appearing I get this...

My .htaccess file for Xenforo looks like this...

#    Mod_security can interfere with uploading of content such as attachments. If you
#    cannot attach files, remove the "#" from the lines below.
#<IfModule mod_security.c>
#    SecFilterEngine Off
#    SecFilterScanPOST Off
#</IfModule>

ErrorDocument 401 default
ErrorDocument 403 default
ErrorDocument 404 default
ErrorDocument 500 default

<IfModule mod_rewrite.c>
    RewriteEngine On

    #    If you are having problems with the rewrite rules, remove the "#" from the
    #    line that begins "RewriteBase" below. You will also have to change the path
    #    of the rewrite to reflect the path to your XenForo installation.
    #RewriteBase /xenforo

    #    This line may be needed to enable WebDAV editing with PHP as a CGI.
    #RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

    RewriteCond %{REQUEST_FILENAME} -f [OR]
    RewriteCond %{REQUEST_FILENAME} -l [OR]
    RewriteCond %{REQUEST_FILENAME} -d
    RewriteRule ^.*$ - [NC,L]
    RewriteRule ^(data/|js/|styles/|install/|favicon\.ico|crossdomain\.xml|robots\.txt) - [NC,L]
    RewriteRule ^.*$ index.php [NC,L]
</IfModule>

Does anyone know a solution for this problem?

 

[Mike]

It's not one that I've seen before. Would it be possible to get a URL (and a test account) to debug?

 

[WiseHollow]

It's not one that I've seen before. Would it be possible to get a URL (and a test account) to debug?

I'll PM you the login info.