409 error when opening "http://localhost:9091/transmission/web" without trailing "/"

[veldt]

Launching the web client from transmission-gtk via "Open web client" doesn't work on my system (ubuntu maverick with seamonkey 2.0.11); the URL that tries to load in the browser is "​http://localhost:9091/transmission/web" and generates a 409 error.

Testing different URL's.. ​http://localhost:9091/transmission/web/ ("this works") ​http://localhost:9091/transmission (changes to "this works") ​http://localhost:9091/ (changes to "this works") ​http://localhost:9091 (changes to "this works")

This gives 409: ​http://localhost:9091/transmission/

The error is the usual:

409: Conflict Your request had an invalid session-id header. To fix this, follow these steps:

1. When reading a response, get its X-Transmission-Session-Id header and remember it
2. Add the updated header to your outgoing requests
3. When you get this 409 error message, resend your request with the updated header

This requirement has been added to help prevent CSRF attacks. X-Transmission-Session-Id: (...)

Here are some other postings/tickets which might be related...

​https://forum.transmissionbt.com/viewtopic.php?f=4&t=10568&hilit=409 ​https://forum.transmissionbt.com/viewtopic.php?f=8&t=6133&hilit=409 ​https://forum.transmissionbt.com/viewtopic.php?f=8&t=8393&hilit=409 ​https://forum.transmissionbt.com/viewtopic.php?f=8&t=10135&hilit=409 ​https://forum.transmissionbt.com/viewtopic.php?f=8&t=10306&hilit=409 ​https://forum.transmissionbt.com/viewtopic.php?f=8&t=9958&hilit=409 https://trac.transmissionbt.com/ticket/1538

This wiki page: https://trac.transmissionbt.com/wiki/WebProxy suggests a rewrite to the URL (...)/transmission/web. I don't know but it might benefit from a trailing slash.

[jordan]

looks like it might be a regression caused by #1538

[mezz]

I can reproduce same problem on FreeBSD when I clicked on 'Open web client' in gtk client. Probably easier way is to copy behavior like qt by doing '​http://localhost:9091/' when click on open web client. Or make it learns to accept the '​http://localhost:9091/transmission/web'.

[jordan]

r12467 gtk/tr-prefs.c: (trunk gtk) #4014 "409 error when opening .../transmission/web without trailing '/'" -- use suggestion from Mezz to have the "open web client" button in the GTK+ client follow the same URL as the Qt client

[livings124]

This looks like it should've been closed. Please reopen if I'm incorrect.

[rubenvb]

I'm running into this with Transmission 2.84. Adding a trailing slash '/' to the URL makes the error page go away. So

.../transmission/web

doesn't work (error 409), but

.../transmission/web/

works.