I followed the tutorial.
I confirmed 'AddHandler fastcgi-script .fcgi' is commented out.
I changed
RewriteRule ^(.*)$ dispatch.cgi [QSA,L]
to
RewriteRule ^(.*)$ dispatch.fcgi [QSA,L].
The permission of dispatch.fcgi is 755.
But it shows the content of dispatch.fcgi.
What's wrong?