1: First, you have to authorize our QR code reader from image to use your camera
2: Then you will see the video
3: Point the QR code on the video center
4: If it doesn't detect your code, move back and forth slightly
5: After successfully scanning, the result will be displayed on the screen.
6: I successfully tested this camera feature on a web browser on the PC, but not ok on my mobile phone
7: In my experience, using the camera on the browser by Android mobile will make a problem, the camera function will be locked and crashed, if this happens then restart your phone