Hello colleagues, something similar happened to me when I tried to access certain pages with my webcam, I couldn't get it to broadcast live if I entered from the Opera browser. Here are two screenshots to configure your webcam to make transmissions
The first thing you have to do is go to the opera menu and select the settings box as you can see in the image
Una vez dentro os vais hasta la palabra camera y seleccionáis la primera opción.
Once followed the steps, save the changes and try to enter from the browser operates any web page that allows to activate the webcam and make stramings.
I hope this solves the problem!