Hello, the details description of the issue can be found here: http://stackoverflow.com/questions/43235402/server-sent-events-with-apache-and-wildfly

The problem is, that when Apache as a proxy server and Wildfly as a backend server are configured to use ajp connector, than connection to "server sent events" cannot be established.

Here are headers that server sends back in this case:

Cache-Control:no-cache

Connection:keep-alive

Content-Type:text/event-stream;charset=UTF-8

Date:Fri, 31 Mar 2017 12:11:38 GMT

Transfer-Encoding:chunked

But it works fine, as soon as I switch them to use http connector.