Redirect a URL with querystring to to a new URL with same querystring

Question

I currently have the following in my .htaccess file that redirects all requests to the SSL version of the site:

RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-SSL} !on
RewriteRule ^(.*) https://www.mydomain.com$1 [R=301,nc]

Now, I'd like to redirect calls to my current root URL - only when it has a querystring attached - to a new url with the same querystring. Example:

https://www.mydomain.com/?foo=bar redirected to:

https://www.mydomain.com/new_mapping/?foo=bar

Whereas requests without a querystring continue to go to https://www.mydomain.com/

Thanks in advance for any help.

Michael Berkowski · Accepted Answer · 2012-12-20 22:04:39Z

1

Use a RewriteCond to match a nonempty query string with .+ and rewrite it with [QSA]

RewriteEngine On
# If the querystring has at least 1 character
RewriteCond %{QUERY_STRING} ^.+
# Rewrite requests to the root 
RewriteRule ^/?$ new_mapping [L,QSA]

If you want to actually redirect the browser to show the new URL, use [R=301]. The [QSA] is technically not necessary then, because the query string will automatically be appended for a redirect.

RewriteRule ^/?$ new_mapping [L,R=301,QSA]

edited Dec 20, 2012 at 22:04

answered Dec 20, 2012 at 21:53

Michael Berkowski

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4 Comments

Abid A Over a year ago

That doesn't seem to be doing anything. Should I place it in a certain place in relation to my current RewriteRule?

Michael Berkowski Over a year ago

@AbidA It should be placed after your SSL redirect. I'll also change it to `^/?$ though that should not be necessary. To debug, remove the RewriteCond and verify that the root URL rule is matched, then add back the RewriteCond.

Abid A Over a year ago

Now I'm getting a 400 Bad request. Everything seems to work fine, except when the querystring is applied to the root URL.

Abid A Over a year ago

Oh, so I added the complete URL https://www.mydomain.com/new_mapping and that worked.

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