I am trying to control an IP WEB-CAMERA based on HTML based. I already have the video part done, but controlling the camera UP-LEFT-RIGHT-DOWN is not working. It is working from local network, but not from public. I am using a service to control and view the camera without opening ports on my home ROUTER called portmap.io. What i need is to control the servo of the camera from same HTML page, I can videostream the feed but cannot control it remotely.