how to make getUserMedia() work on all browsers

Question

I learn about web-rtc, it says that you can capture video-cam , i used demo , well this worked on chrome only..

when i open it on firefox i get mess

Answer 1

navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia;

In addition, you have to use https instead of http, otherwise Safari for iPadOS won't work.