It's not really controlling the camera. You need the JavaScript MediaDevices API for that. It just launches the mobile camera and requests that you take a pictu

It's not really controlling the camera. You need the JavaScript MediaDevices API for that. It just launches the mobile camera and requests that you take a picture, and the picture of never returned to the site until you confirm it. (Similar to any app that shows the "Take a Picture" or "Choose from Gallery" dialog when uploading an image. That is actually the default if you don't specify that the photo should come from the filesystem or camera) Regarding the web becoming its own OS.. there is no easier way to make cross platform applications these days. If every OS vendor could agree on some standard desktop API, there would be a lot more native apps.