htaccess redirect everything to example.com/index.htm

Question

I want to redirect any request from one domain to another but not request the page on the new domain or pass parameters. The closest I got was:

RedirectMatch permanent ^(.*)$ http://www.example.com

but this passes the parameters (e.g. ?param=one) which is messy.

Answer 1

From the docs:

... when you want to erase an existing query string, end the substitution 
string with just a question mark. 

So, I guess this should work:

   RedirectMatch permanent ^(.*)$ http://www.example.com/?