.htaccess in Wordpress for https and www to non-www

Question

does anyone have any idea, why my redirection from www to non-www might not work?

Basic Info: Strato Hoster, Worpress Domain redirection is working for: bitcoinmesse.com Sub-Domain redirection not working: shop.bitcoinmesse.com

Current .htaccess:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
</IfModule>


# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Tried so many different things, all through the web. Most of them lead to this:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Others just said I have an infinite loop:

Again others lead to weird errors, like requesting a subfolder likte /shop/ and either getting a 404 or a https://shop/ couldn't be reached.

But none of them redirected www to non-www. Entering the address with www just always lead to: Server not found in Firefox or Website not reachable in Chrome.

Anyone has any ideas?

EDIT: Meanwhile it seemed to have an effect, and www.shop.bitcoinmesse.com is reachable and forwards to https://shop.bitcoinmesse.com.

Unfortunately a subpage like www.shop.bitcoinmesse.com/shop/ is not reachable.

Answer 1

Try

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{HTTP_HOST} ^www\.(.+)$ [NC]
    RewriteRule ^(.*)$ https://%1/$1 [R=301,L]
</IfModule>

Basically right now the back-reference $1 isn't pointing to anything. I added (.*) to the RewriteRule so that $1 actually was a reference to a capture group in the regex. You could also try just changing $1 to $0 and it would do the same thing since $0 is the full matched URL.

I also updated the RewriteCond to ensure that the host header has something after www.. It's a minor change, since the server shouldn't be listening to any host header anyway.