I have a reverse proxy setup for access to a third party application located inside a intranet from the internet. Let's say this application is on the URL:
https://internalserver:8080/ (reachable only from the intranet)
and the proxy is on:
https://proxyserver/ (reachable from any place in the world)
The proxy is managed by nginx and is working ok. When the user accesses
they get the content of the app at
The problem is that the application is writing absolute URLs in the HTML response so, when the user clicks a link to a new page the browser is trying to locate the page with its internal name, e.g.
I know this is a program bug, but I'm not able to modify the program.
Can I intercept the response, modify the URLs and send it (modified) to the final client with nginx? Or maybe with another tool?
EDIT: I saw this question before, but my case is more specific, the quoted question ask for a generic modification. In that case the fast-cgi ad hoc program is the best solution, what I want is a more specific solution for (I think) a more common scenario. while a fast-cgi program can work I´m looking for a easiest and maybe stronger and proved into the real world, solution for this scenario.