Enable Camera Access for Chrome and Edge

This solution is proven to work with Chrome and Edge browsers.

Here is the problem. Whenever page needs to access a camera, you get this kind of prompt:

This prompts blocks execution.

The solution is to add use-fake-ui-for-media-stream to the arguments list, i.e.:

["use-fake-ui-for-media-stream"]

I.e.:

Then the prompt will be suppressed (as if user pressed "Accept" earlier).

Specifying Custom Video Stream

It's also possible to stream data from a video file. The file must be in mjpeg format. You may convert any video file to mjpeg using ffmpeg. 

For example:

ffmpeg -i oldfile.mp4 newfile.mjpeg

To specify the fake video stream use these Chrome arguments list

["use-fake-ui-for-media-stream", "use-fake-device-for-media-stream", "use-file-for-fake-video-capture=C:\\full\\path\\to\\stream.mjpeg"]

There is a way to specify a file without hard coding it into a browser profile.  We'll follow recommendations from this KB topic and define GetWebDriverNonProfileCapabilities function.

function GetWebDriverNonProfileCapabilities(profile)
{
	var caps = {};
	
	var videoPath = Global.GetFullPath("stream.mjpeg");
	caps["args"] = ["use-fake-ui-for-media-stream", "use-fake-device-for-media-stream", "use-file-for-fake-video-capture=" + videoPath];
	
	return caps;
}

In this example stream.mjpeg is a file in the root directory of a test framework or a standalone test.

Check the ready to use sample application and test to see how it works: https://github.com/Inflectra/rapise-samples/tree/master/WebCameraQrScan