[Cache] Updates X-Forwarded-Proto (#19876)

* Updates X-Forwarded-Proto

* Changes after review.

Author: angelampcosta

src/content/docs/fundamentals/reference/http-headers.mdx

@@ -80,7 +80,7 @@ To restore the original visitor IP address at your origin web server, Cloudflare
 
 ### X-Forwarded-Proto
 
-`X-Forwarded-Proto` is used to identify the protocol (HTTP or HTTPS) that Cloudflare uses to connect to origin web server. By default, it is `http`. Certain [encryption mode](/ssl/origin-configuration/ssl-modes/) may change this header to `https` if the connection is encrypted.
+`X-Forwarded-Proto` is used to identify the protocol (HTTP or HTTPS) that a visitor used to connect to Cloudflare. By default, the protocol used is `https`, unless the visitor selected a different [encryption mode](/ssl/origin-configuration/ssl-modes/#custom-ssltls).
 
 For incoming requests, the value of this header will be set to the protocol the client used (`http` or `https`). If the client set a different value, it will be overwritten.