Wildfly 9.0.1 undertow 2 gzip usage

[cosmin_go]

Hello, I'm not receiving a gzip-ed response from wildfly on my client's side, part of my configuration is attached.

<subsystem xmlns="urn:jboss:domain:undertow:2.0">
  <buffer-cache name="default"/>
  <server name="default-server">
  <http-listener
   name="default"
   socket-binding="http"
   redirect-socket="https"
   max-post-size="209715200"/>
  <https-listener
   name="https"
   socket-binding="https"
   max-post-size="209715200"
   enabled-cipher-suites="SSL_RSA_WITH_RC4_128_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_DHE_DSS_WITH_AES_128_CBC_SHA"
   security-realm="UndertowRealm"/>
  <host name="default-host" alias="localhost">
  <location name="/" handler="welcome-content"/>
  <filter-ref name="server-header"/>
  <filter-ref name="x-powered-by-header"/>
  <filter-ref name="anti-clickjack-header"/>
  <filter-ref name="limit-connections"/>
<filter-ref name="gzipFilter" predicate="exists['%{o,Content-Type}'] and min-content-size[10] and regex[pattern='(?:text/plain|text/html|text/xml|application/vnd.syncy+xml)(;.*)?', value=%{o,Content-Type}, full-match=true]"/>
  </host>
  </server>
  <servlet-container name="default">
  <jsp-config/>
  <websockets/>
  </servlet-container>
  <handlers>
  <file name="welcome-content" path="${jboss.home.dir}/welcome-content"/>
  </handlers>
  <filters>
  <connection-limit name="limit-connections" max-concurrent-requests="500" queue-size="100"/>
  <response-header name="server-header" header-name="Server" header-value="WildFly/9"/>
  <response-header name="x-powered-by-header" header-name="X-Powered-By" header-value="Undertow/1"/>
<response-header name="Vary-header" header-name="Vary" header-value="Accept-Encoding"/>
  <response-header name="anti-clickjack-header" header-name="X-Frame-Options" header-value="SAMEORIGIN"/>
<gzip name="gzipFilter"/>
  </filters>
</subsystem>

Thank you

[cosmin_go]

I needed to escape the '.' and '+' in the custom type like this 'application/vnd\.syncy\+xml'