htaccess not redirecting to custom 404

Question

Everything on my page works except that non existing page is recognised as parameter and that displays page with header and footer.

ErrorDocument 404 /error
ErrorDocument 403 /error
ErrorDocument 500 /error

RewriteCond %{SCRIPT_FILENAME} !-d
RewriteCond %{SCRIPT_FILENAME} !-f
RewriteRule ^(.*)$ index.php?v=$1 [L,QSA]
RewriteRule ^(.*)-(.*)-(.*)$ index.php?v=$1&page=$2&folder=$3 [L,QSA]

When I try to open mydomain.com/non-existing-page than "non-existing-page" is recognised as parameter $v and page mydomain.com/index.php$v=non-existing-page is opened with only header footer and no content.

Answer 1

You can change .* with [^/-]+ to allow only single parameter (non-slash+non-hyphen) to be handled by index.php .

You can use these rules:

ErrorDocument 404 /error
ErrorDocument 403 /error
ErrorDocument 500 /error

RewriteCond %{SCRIPT_FILENAME} -d [OR]
RewriteCond %{SCRIPT_FILENAME} -f
RewriteRule ^ - [L]

RewriteRule ^([^/]+)-([^/]+)-([^/]+)/?$ index.php?v=$1&page=$2&folder=$3 [L,QSA]