Calling webcam functions results in multiple browser prompts for access in chrome

[DanielKoohmarey]

Calling webcam.start with default args of stream = true, the stream call results in two separate prompts to the user to allow access to the webcam in Chrome. Is there a way to request permissions from the user only once for the lifetime of the webcam object? This is the result of the navigator.mediaDevices.getUserMedia(this.getMediaConstraints()) call in both functions. In the stream function the this._streamList should be checked, and if not empty, simply use the existing stream object.