How to keep # character in htaccess redirect?

Question

htaccess

Please help me to make a correct redirect from one domain to another, keeping the # character in the end.
htaccess looks like this:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^old-site\.ru$ [NC]
RewriteRule ^(.*)$ http://new-site.ru/#/cat/news/$1 [R=301,L]

The problem is that the # character is not stored after the redirect, and this leads to an error.
the # symbol is replaced with %23 and the link becomes http://new-site.ru/%23/cat/news/
How to keep the # symbol when redirecting? Thanks to.

Answer 1

https://httpd.apache.org/docs/2.4/rewrite/flags.ht...

Answer 2

Have you tried adding AddDefaultCharset?