3 ms·

But only if you allow WebUSB access, which the browser will ask you first. If you allow Camera access you get a metric ton of bits.

• hedora 3y ago
  The author of the sample code implies it will run without prompting.
  • lxgr 3y ago
    No, but the browser reveals that it generally supports these APIs, letting the site know that there is a point in even prompting.