newt
I did not try to use intel XDK or cocoon.io for my plugins, sorry I have no idea.
You might check this post
[quote:q16ye2an]you have to add "In App Browser Plugin" to make it work. You may find "In App Browser Plugin" from Cranberrygames's work.
It should work for WebView(+) on CocoonIO and Intel XDK (install the inapp browser plugin), however it will not work with CocoonIO's canvas+ engine due to the fact that Canvas+ do not support SSL Websockets.
Hopefully Ludei will make a Firebase Plugin for Construct 2
Regards
Andy