Mixed results using https://dicekeys.app/ on 2019 MacBook Pro with Safari 14.0 (15610.1.28.1.9, 15610)

[yeliaBdE]

When the "Scan your DiceKey" button is pressed, a clear, sharp video stream is displayed. It is easy to bring the DiceKey into view and, if held reasonably still for about a second or so, green outlines of the individual dies are displayed, with the "final" image appearing shortly thereafter. The "Create a password for" functionality produces passwords as expected.

This was using the MacBook's internal camera.

I also have a camera in an attached display (an old Apple Thunderbolt Display). When trying to use that camera (by changing the dropdown to select it, the camera goes active (i.e., its green light illuminates) and a video stream appears. However, the video is not as sharp as it was from the internal camera, and it is impossible to bring the DiceKey into sufficiently sharp focus to trigger analysis of the image.

As a side note, although often I could switch between cameras with no problems, occasionally a video stream from the selected camera wouldn't appear. Either switching the camera away from, and then back to the problem camera, or just refreshing the page entirely would set things straight.

[yeliaBdE]

Using the staging app, I was able to get the DiceKey scanned using the Macbook's internal camera with little effort.

Using my display's camera, I was again unable to get a successful scan; it was still impossible to get the DiceKey into focus.