Striping last slash can cause INFINITE redirect loop

[alfredxiao]

(str (assoc (cemerick.url/url "http://abc.com:80/haha/") :port 8080))
=> "http://abc.com:8080/haha"
where you can see the ending slash is striped off.

I am using this url library in a reverse proxy. The reverse proxy would replace the "Location" header returned by a web server with its own hostname/port. This means last slash character is stripped off. Imagine below interactions

1. browser request http://www.simpleweb.org/ietf/mibs/modules/html
2. reverse proxy forward it to web server
3. web server returns 301, Location: http://www.simpleweb.org/ietf/mibs/modules/html/
4. reverse proxy replace it with its own hostname/port, using url library and new url is: http://reverseproxy_host:8080/ietf/mibs/modules/html
5. browser request http://reverseproxy_host:8080/ietf/mibs/modules/html
6. reverse proxy forward it to web server
7. web server sees it not ending with '/', returns 301 again
8. repeats
   ...

[Eschon]

👍
I don't have problems with infinite redirects but stripping the last slash from an url that I use somehow makes it so that HTTPS doesn't work.

[agriffis]

dup of #9