MicroBit V2: navigator.bluetooth.getDevices is not a function

[makermelissa]

CircuitPython version

adafruit-circuitpython-microbit_v2-en_US-7.3.3.combined.hex; microbit_v2

Code/REPL

code.circuitpython.org

Behavior

Uncaught (in promise) TypeError: navigator.bluetooth.getDevices is not a function

Argh: NetworkError: Connection failed for unknown reason.

Description

Additional information

No response

[beaufortfrancois]

navigator.bluetooth.getDevices() is available only when the user enabled the flag "chrome://flags/#enable-web-bluetooth-new-permissions-backend". You can follow https://bugs.chromium.org/p/chromium/issues/detail?id=577953 progress to know when this feature will be enabled by default for all users.

See #8

[makermelissa]

That's correct, but there's code in place that should have detected and alerted the user. So a part of the issue is figuring out why that didn't happen.

[beaufortfrancois]

I believe it's because there's no try/catch around these calls below:

web-editor/assets/js/workflows/ble.js

Line 66 in 57ddcbb

const devices = await navigator.bluetooth.getDevices();

web-editor/assets/js/workflows/ble.js

Line 242 in 57ddcbb

let devices = await navigator.bluetooth.getDevices();

This call below on the other hand is properly handled.

web-editor/assets/js/workflows/ble.js

Line 101 in 57ddcbb

const devices = await navigator.bluetooth.getDevices();

[makermelissa]

Yeah, it's probably a good idea to add that.