Can not reply on the forum or Locked

[daulagari]

I tried to post something on the forum from my Linux machine using Firefox or Konqueror but that is not working out.

• In Firefox 30 I can type a reply and press submit but nothing happens and no reply is added. Same problem trying Firefox and WinXP.
• In Konqueror I see an orange line above all threads saying "This thread has been deleted. Only users with thread management privileges can see it." is displayed but I can still see the thread although every items is Locked (Blue box)

Eventually installed Chromium and that works but ... I am the only one having problem access the forum using Firefox?

[marceltrapman]

When you see this reply it means I was able to submit it (Firefox on Mac though and used only for this test).

[daulagari]

Still using Chromium I enable "Live HTTP header" while trying using Firefox and I see:

http://forum.mysensors.org/socket.io/1/?t=1405886010035

GET /socket.io/1/?t=1405886010035 HTTP/1.1
Host: forum.mysensors.org
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:30.0) Gecko/20100101 Firefox/30.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: express.sid=s%3AomLCnc8o2jWjEhxQxplyLt9HFWZwqLOR.5R8%2B4xVScOLLt2D9cAs2BVn%2Bspl3kIGOIop1Ie5sr1U; _ga=GA1.2.1667585123.1404853555
Connection: keep-alive

HTTP/1.1 502 Bad Gateway
Server: nginx/1.4.1 (Ubuntu)
Date: Sun, 20 Jul 2014 19:53:30 GMT
Content-Type: text/html
Content-Length: 181
Connection: keep-alive

I think this has to do with the problems but do not know what to conclude based on it.

[hek]

The forum is utilizing websockets. Is your webbroswer complient? If not it should fallback to plain ajax (or long pull dito).

[hek]

Hmm.. Searching around for similar issues I found:
http://stackoverflow.com/questions/3704626/nginx-502-bad-gateway-error-only-in-firefox
But the ngnix log does not show any "upstream sent too big header while...".

Instead I see a lot of "upstream prematurely closed connection while reading response header from upstream" in the log. Which leads to believe it has something to do with:
https://github.com/NodeBB/NodeBB/issues/692
But this seem to be an issue in all browsers.

I might try increasing ngnix cookie buffers anyway like suggesten in first link later. I'll contact you @daulagari again when it has been done.

[hek]

Buffers has been increased. Could you test with your firefox again?

[daulagari]

Tried once more with Firefox but same behavior as before:

• I press Reply and the normal editor pops up in the bottom of the screen
• Type the message left and the preview right looks fine
• Press Submit and in the top of the screen a turning progress circle is displayed for five seconds and after that it changes into a V
• But the editor window in the bottom remains open and no message posted

Made a capture using Wireshark and see quite some 502 Bad Gateway coming by.

See the site is running nginx and I am running that also on my Cubieboard2 and also had 502 Bad Gateway problems and solved them eventually, see https://domotiga.nl/projects/domotiyii/wiki/Installation#If-things-go-wrong

The stackoverflow link is for a very old version of Firefox; I doubt if that is still relevant. I this article, http://stackoverflow.com/questions/10470109/error-502-in-nginx-php5-fpm, two year old maybe helpful?

[hek]

The forum is node.js based (not php). I doubt it's right related. The forum runs inside a dockers container with a ngnix proxy (which has websocket proxying enabled) in front of everything.

[daulagari]

Tried again with Firefox and now things are working.

Problems solved!