Sanitize query parameters in the URL with htaccess-CodePudding

Is there a way with mod_rewrite to sanitize an URL of this type:

https://www.example.com/blabla/?&param1=1&param2=2

https://www.example.com/blabla/?param1=1&param2=2

Thank you

CodePudding user response：

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

That should basically do it. The RewriteCond matches on any query string that starts with &, and simply captures the rest.

And then you simply insert the back reference to that "rest" into the substitution URL, using %1.

Edit: Pattern changed to (.*) to capture all URL paths; back reference $1 inserted into substitution URL.