At my workplace we use nginx as a proxy for a socket.io messaging application that was launched around a week ago. We’ve had very few bug/error reports from users so I’m assuming that it mostly works as intended. The only problem is that when I check the nginx logs I see a lot of 400 responses. There are roughly 5 400 responses for every 101 response. I’ve Googled this all week but still haven’t found an answer.