Apache rewrite QUERY_STRING starts with &

Question

I have a URL starts with a "&" at the beginning of the query string.

www.example.com/index.htm?&parameter1=value1&parameter2=value2

I would like to redirect a query string that starts with a & to the same URL but without the & at the beginning.

Request

www.example.com/index.htm?&parameter1=value1&parameter2=value2

Result

www.example.com/index.htm?parameter1=value1&parameter2=value2

I have already made several attempts but can't get the correct rule.

Answer 1

Sounds pretty straight forward:

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

Seems to work: