I trying to improve my understanding of htaccess rewrite rules and used a couple of online testing tools to verify a simple rewrite I did, but I don't understand why the returned url is repeated. I'm questioning if my rule is wrong of if there is something inherently wrong with this tool?

All I am trying to do is redirect all requests to a .com domain to the same page on a .com.au domain.

RewriteCond %{HTTP_HOST} ^domain\.com$ [OR]
RewriteCond %{HTTP_HOST} ^www\.domain\.com$
RewriteRule .? "https://domain.com.au%{REQUEST_URI}" [L,R=301]

So as I understand, this says:

• Conditions: If the host is domain.com OR www.domain.com
• Rule: match anything or nothing as the requested uri and redirect to https://domain.com.au/whatever-the-request-uri-is

But when I test this using https://htaccess.madewithlove.be for example, the returned url repeats like https://domain.com.au/bloghttps://domain.com.au/bloghttps://domain.com.au/blog... However on the web server it appears to work fine.

The other rule I tried was:

RewriteRule ^(.*)$ https://domain.com.au/$1 [R=301,L]

And this returns a single correct result using the testing tool, but I read that it's preferable to use the server variables.

So is there something wrong with my first rule or is that testing tool broken?

CodePudding user response：

This works according to my tests:

RewriteCond %{HTTP_HOST} ^(www\.)?example\.com$
RewriteRule ^ https://example.com.au%{REQUEST_URI} [L,R=301]

I am currently unable to explain why your own attempt does not, though. Sorry! I have the impression that this is indeed a bug inside the test utility, assuming that you used https://htaccess.madewithlove.be/ ...