print "Who am I? "
button "IP", [IP]
With the (nearly default) settings
any PC or smartphone in the local net at home using the local IP of the ESP gets a result by clicking this "IP button".
If I set a port forwarding in my router for ports 80-81 to the local IP of the ESP, all is working nice on any PC outside in the world.
If I forward only port 80, the button shows up, but does not work.
I want to use the ESP through a porttunnel with an IP filter, which uses only one port.
(So I could restict the users of the ESP web page to only a few IPs).
Even if I try to use two port tunnels (one for port 80 and one for port 81), the IP button does not work.