I want to remove the string

?mobile=1

out from different URLs with .htaccess. So:

https://www.example.com/?mobile=1 should become https://www.example.com/

and

https://www.example.com/something/?mobile=1 should become https://www.example.com/something/

I tried the following

RewriteEngine On
RewriteRule ^(. )?mobile=1 /$1 [R=301,L,NC]

But that does not seem to work. Any ideas?

CodePudding user response：

RewriteRule ^(. )?mobile=1 /$1 [R=301,L,NC]

The RewriteRule pattern matches against the URL-path only, which notably excludes the query string. So the above would never match. (Unless there was a %-encoded ? in the URL-path, eg. ?)

To match the query string you need an additional condition (RewriteCond directive) and match against the QUERY_STRING server variable.

The regex . (1 or more) will not match the document root (ie. your first example: https://www.example.com/?mobile=1). You need to allow for an empty URL-path in this case. eg. .* (0 or more).

For example, try the following near the top of your root .htaccess file:

RewriteCond %{QUERY_STRING} =mobile=1
RewriteRule (.*) /$1 [QSD,R=301,L]

This matches the query string mobile=1 exactly, case-sensitive (as in your examples). No other URL parameters can exist. The = prefix on the CondPattern makes this an exact match string comparison, rather than a regex as it normally would.

And redirects to the same URL-path, represented by the $1 backreference in the substitution string that contains the URL-path from the captured group in the RewriteRule pattern.

The QSD (Query String Discard) flag removes the query string from the redirect response.

Test first with a 302 (temporary) redirect and and only change to a 301 (permanent) - if that is the intention - once you have confirmed this works as intended. 301s are cached persistently by the browser so can make testing problematic.

CodePudding user response：

MrWhite is awesome, the following code worked perfectly:

RewriteCond %{QUERY_STRING} =mobile=1
RewriteRule (.*) /$1 [QSD,R=301,L]