Add XXXs to KVM stack

stack/kvm.cfg

@@ -25,6 +25,20 @@ extends =
 #            Websockify (socket <-> websocket proxy server) when it is ready.
 #            May solve previous XXX depending on the implementation.
 
+#XXX-Cedric: ALL MAJOR BROWSERS WORK WITH DOMAIN NAME (ie. not with raw IPV6)
+#            Note : internet explorer not tested.
+
+#XXX-Cedric: Check status of https://bugzilla.mozilla.org/show_bug.cgi?id=633001
+#            To see when firefox can add cert exceptions with ipv6 address.
+#            Until that, Firefox can't be used without frontend. Same for
+#            Safari : https://bugs.webkit.org/show_bug.cgi?id=70020.
+#            (solution : frontend)
+
+#XXX-Cedric: Safari : Check status of https://bugs.webkit.org/show_bug.cgi?id=66465
+#            to see if websocket can be used with ipv6 address.
+#            (solution : frontend)
+
+
 parts =
   template
   gnutls