GZip compression not working on Tomcat7

I recently tried using gzip compression to improve web UI performance. I configured Tomcat Connector as below.

compression="on"compressionMinSize="2048"noCompressionUserAgents="gozilla, traviata"compressableMimeType="text/html,text/xml,text/css,text/javascript,text/json,application/x-javascript,application/javascript,application/json"

Below is RequestHeader - Accept-Encoding is gzip, deflate.

Key ValueRequest GET /app/jquery-ui.min.js HTTP/1.1Accept  */*Referer https://cdduat.app.com/Apptech/Accept-Language en-USUser-Agent  Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.3)Accept-Encoding gzip, deflateHost    cdduat.app.comConnection  Keep-AliveCache-Control   no-cacheCookie  JSESSIONID=CB793FFEE9A34B5B8E7DE34A17C90B5D; mbox=session#1436174197635-942865#1436176058|PC#1436174197635-942865.28_07#1437383802; s_fid=498342221B10B4ED-297E46742B9393BE; s_vi=[CS]v1|2ACD23BB851D5DBF-40001903C00C9391[CE]; oo_event_entry=41eebf1007f6e19f5b0ee4b5841be2441e970f9c

For response header - there is no Accept-enconding key value. Moreover I'm not sure if its working or not. Below is Response Header. Web form load time is still the same. Not sure if I am doing anything wrong here.

Server  Apache-Coyote/1.1Accept-Ranges   bytesETag    W/"238326-1435860126000"Last-Modified   Thu, 02 Jul 2015 18:02:06 GMTContent-Type    application/javascriptContent-Length  238326Date    Mon, 13 Jul 2015 22:22:23 GMT

Also I could see Cache-control value as no-cache. Does it mean browser wont cache JS files and request for those resources again on subsequent request?

I noticed Transfer-encoding as chunked. Not sure if it may or may not override gzip encoding. Any help or guidance would be really helpful.