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HTTP eventsource GET / hr_streaming POST mass call

See original GitHub issue

Version: 6.1.0

Environment:

Operating system: server Debian 8
Browser: Mac OS X 10.10 / Firefox 58.0
Node.js: v6.11.3

Steps to reproduce: not able to reproduce - this behavior appear sometimes

Hello guys,

I recently saw in my Nginx (with a nodejs/express/primus/ sockJS as upstream over HTTPS) logs that sometimes Primus browser clients spam my server logs with a lot of http call. The log extract below is made multiples times per second. After having a look at Primus source code, i saw a reference on /xhr_streaming to CORS cross browser compatibility check for XHR but i am not sure that this behavior refer to this as i am not concern with CORS case. All HTTP calls are made from the same origin.

x.x.x.x - - [27/Feb/2018:21:11:07 +0000] "GET /primus/589/vlnmgpne/eventsource?_user=3067bf39-f689-4142-a84d-ab550586d7fc&name=username&client=web&_primuscb=M7Nv3j1 HTTP/1.1" 200 52 "https://iamthereferer.com" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:58.0) Gecko/20100101 Firefox/58.0"
x.x.x.x - - [27/Feb/2018:21:11:07 +0000] "POST /primus/589/kh1wldtk/xhr_streaming?_user=3067bf39-f689-4142-a84d-ab550586d7fc&name=username&client=web&_primuscb=M7Nv3j1&t=1519765801749 HTTP/1.1" 200 2092 "https://iamthereferer.com" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:58.0) Gecko/20100101 Firefox/58.0"
x.x.x.x - - [27/Feb/2018:21:11:07 +0000] "POST /primus/589/kh1wldtk/xhr_streaming?_user=3067bf39-f689-4142-a84d-ab550586d7fc&name=username&client=web&_primuscb=M7Nv3j1&t=1519765801816 HTTP/1.1" 200 2092 "https://iamthereferer.com" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:58.0) Gecko/20100101 Firefox/58.0"
x.x.x.x - - [27/Feb/2018:21:11:07 +0000] "POST /primus/589/kh1wldtk/xhr_streaming?_user=3067bf39-f689-4142-a84d-ab550586d7fc&name=username&client=web&_primuscb=M7Nv3j1&t=1519765801885 HTTP/1.1" 200 2092 "https://iamthereferer.com" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:58.0) Gecko/20100101 Firefox/58.0"
x.x.x.x - - [27/Feb/2018:21:11:07 +0000] "POST /primus/589/kh1wldtk/xhr_streaming?_user=3067bf39-f689-4142-a84d-ab550586d7fc&name=username&client=web&_primuscb=M7Nv3j1&t=1519765801952 HTTP/1.1" 200 2092 "https://iamthereferer.com" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:58.0) Gecko/20100101 Firefox/58.0"

Can anyone give me a tip to understand if this is a normal behavior and why this happen ?

In a normal usage of Websocket with Primus i did never see those http call before.

thank you for the help