I have a web application which use web sockets. I have tomcat 7.0.64 and tomcat 8.0.26. They both implements jsr 356 and permessage-deflate (as I found from changelogs).
When I deploy war file to tomcat8 permessage-deflate works fine, but when I deploy the same war on tomcat 7 permessage-defalte doesn't work. What may be the cause? The only difference which I found beetween tomcat 7 and tomcat 8 that tomcat 8 use nio by default, but tomcat 7 bio connector. I tried to switch tomcat 7 to nio connector only. But it doesn't work too. I can't update to tomcat 8 by many reasons, so I have to configure it with tomcat 7. P.S. I use java 8u45.
