I'm trying to make redirect on nginx but unfortunately it doesn't work. What I'd like to achieve, it is to redirect amp files on mobile.
What I'd like to do :
from
https://www.example.com/uri-759.html
to
https://www.example.com/uri-759-amp.html
What I did as redirect
if ($mobile_redirect = perform) {
redirect ^(.*)(\.html)$ $1-amp$2 permanent;
}
what I obtain
https://www.example.com/uri-759-amp-amp-amp-amp-amp-amp-amp-amp.html
Does someone have a solution to perform this redirection ?
You can use a negative lookbehind assertion to avoid matching the rewritten URI.
For example:
rewrite ^(.*)(?<!-amp)(\.html)$ $1-amp$2 permanent;
See this document for more.