Domain based routing: Should extractFromDomain function get it from the X-Forwarded-Host header?

[fprl]

Hi Roberto, again, thank you for this library.

I was wondering if the extractFromDomain function should get the hostname from the X-Forwarded-Host header instead of the url and fallback to the 'host' header or url as a last resort.

Why? The presence of a reverse proxy or load balancer would make this feature not work with the current approach.

Thank you!

[robisim74]

Thanks @fprl If you have the opportunity to test the modified code in production, and you want to share it or make a PR, you are welcome.