Before starting the pairing process, make sure you remove the Bluetooth device from the list of allowed devices of the page by clicking on the lock button next to the URL and clicking the "Reset permissions" button below the list of granted device permissions.
Once running, start the pairing process.
Step 3
Press the button to forget the device. It'll check if the device has been successfully forgotten.
Status:
Web Bluetooth is not supported by this browser.
Bluetooth requires a secure context (HTTPS). For development purposes it
does support HTTP, but only the on the loopback adapter (i.e. "localhost").
Web Bluetooth is supported by this browser but this device does not have
Bluetooth capabilities.