I actually don't know how to get proxy log, c9 support doesn't react... I've seen similar questions on their forum with no response.
In my browser I got these headers: 1. Request URL: https://phoenixtonic-infocube.c9users.io:8080/ 2. Request Method: GET 3. Status Code: 503 Service Unavailable 4. Remote Address: 126.96.36.199:8080 5. Referrer Policy: no-referrer-when-downgrade 1. Response Headersview source 1. Date: Fri, 07 Apr 2017 13:52:15 GMT 2. Transfer-Encoding: chunked 3. X-BACKEND: apps-proxy 2. Request Headersview source 1. Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 2. Accept-Encoding: gzip, deflate, sdch, br 3. Accept-Language: hr,en-US;q=0.8,en;q=0.6,it;q=0.4,it-IT;q=0.2,sl;q=0.2,sr;q=0.2,de;q=0.2,und;q=0.2 4. Cache-Control: max-age=0 5. Connection: keep-alive 6. DNT: 1 7. Host: phoenixtonic-infocube.c9users.io:8080 8. Upgrade-Insecure-Requests: 1 9. User-Agent: Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36 -- --- You received this message because you are subscribed to the Google Groups "Zotonic developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to zotonic-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.