Your system configuration does not currently support this feature. The handbook page on Clean URLs has additional troubleshooting information.
In this section are instructions for troubleshooting specific problems with Clean URLs.
This section provides instructions for configuring clean URLs on specific hosts.
The default .htaccess RewriteRule to redirect every multisite.com to www.multisite.com does not work properly.
If you have problems with it, leave the two lines uncommented, and add the following three lines for each multisite you set up:
On this page:
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