Android emulator with javascript?

Question

JavaScript

You need to run the apk in the browser
But you need attention, only in the browser
Extensions do not fit
saw appetize.io and app.testobject.com
but how did they do it?
using grunt andorid emulator do this?

Answer 1

You need to run the apk in the browser, but the extensions are not suitable, and the browser is not made for this. HM. Mystery. I'll put it next to "how to move your hand without moving your hand."
Maybe they launched apk on android, and displayed the picture in the browser? No, it's too easy. We must look for another solution.

Answer 2

Maybe they launched apk on android, and displayed the picture in the browser? No, it's too easy. We must look for another solution.
And how can this be done? Facilities?