Why does this URL result in a 400 (Bad Request) error?

[John Moore]

John Moore wrote:
> Igor Sysoev wrote:
>>
>>
>> Have this resolved Tomcat issue ? It's really strange that Tomcat 
>> does not
>> support the encoded URL.
>>
>>   
> It seems to have done, yes. It's had a slight side-effect, though, in 
> that I'm now getting a 404 error from nginx on a particular page, 
> which it should be proxying. How would the addition of the forward 
> slash to http://backend cause this, and what do I need to do to 
> compensate?
>
Ignore this, it was simply because another block was also using the 
proxy module and I hadn't updated it. It did confirm, though, that the 
proxy_pass directive is very fussy about where it is.  In this block, if 
I append an / to the http://backend, it gives the same error as reported 
earlier ("proxy_pass" may not have URI part in location given by regular 
expression, or inside named location, or inside the "if" statement, or 
inside the "limit_except" block in /etc/nginx/nginx.conf:98):


        location ~ 
/(viewServers|addServer|removeServer|reloadServers|clearPageCache|flushPageCache|pageCacheStats).htm$ 
{
            auth_basic "Restricted";
            auth_basic_user_file /etc/nginx/users;
            proxy_pass         http://backend;
            include /etc/nginx/proxy.conf;
            gzip on;
            gzip_types text/javascript text/css application/x-javascript;

        }

As it happens, I don't actually need the encoding/decoding working for 
these pages, so I can leave it as it is above.

JM