Nginx proxy_pass not working without trailing slash

Question

I've done some searching on this issue and have found other posts similar to this one, but none of the solutions have helped me.

I've got a location entry in my Nginx config which contains a proxy_pass rule, but it only seems to work when I add a trailing slash to the URL.

Here's the location stanza

    location  /webApp {
        proxy_pass         https://webapp.service.consul/webApp;
        proxy_set_header   Host webapp.service.consul;
        proxy_intercept_errors on;
    }

You can see, when I use curl and go out to /webApp/ (with trailing slash), it works fine - and the cookie is set as expected:

MacBook-Pro:~ $ curl -I https://example.com/webApp/
HTTP/1.1 302 Found
Server: nginx/1.9.11
Date: Thu, 28 Apr 2016 14:45:55 GMT
Content-Length: 0
Connection: keep-alive
Set-Cookie: JSESSIONID=440B8D729469BBD80FC92796754D9475; Path=/providerApp/; HttpOnly
Location: http://webapp.service.consul/webApp/login.do;jsessionid=440B8D729469BBD80FC92796754D9475

However, when I go out to /webApp (no trailing slash), I get a 302 Found, but I don't get redirected to the /webApp/login.do page as I did with the trailing slash:

MacBook-Pro:~$ curl -I https://example.com/webApp
HTTP/1.1 302 Found
Server: nginx/1.9.11
Date: Thu, 28 Apr 2016 14:48:44 GMT
Connection: keep-alive
Location: http://webapp.service.consul/webApp/

I have tried add a rewrite rule, something like:

rewrite ^(.*[^/])$ $1/ permanent;

But it doesn't seem to make a difference. This was working before, and I haven't really messed with this location stanza, so I'm wondering if it has something to do with one of my other locations.

Any tips?

@Alexey, what do you mean? The consul app works fine when adding the trailing slash (or when bypassing Nginx completely). — cookandy
This redirect issued by consul, not nginx. BTW, show full nginx's config and I can't understand is it really redirect's you to webapp.service.consul? — Alexey Ten
I think what I really want to do is redirect /webApp to /webApp/login.do on the first visit, and then send to proxy_pass. Is that possible? — cookandy

cnst cnst · Accepted Answer · 2017-07-28T00:59:01

You didn't actually specify IN WHICH WAY is it not working, but it sounds like an issue that should be fixable by the proxy_redirect directive.

proxy_redirect http://webapp.service.consul/webApp/ http://example.com/webApp/

(However, the best solution might be to just ensure that the hostnames are correctly specified in the rest of the configuration files.)

Nginx proxy_pass not working without trailing slash

1 Answers