Does web-bluetooth run into a 20 byte MTU on Windows Chrome?
I am seeing writes to a characteristic value of the same 25 bytes succeed in Chrome on mac OS and fail in Chrome on Windows.
As I whittle down the bytes, the error continues occurring until I reach 20 bytes. If this is the MTU, is it documented somewhere? And is there a way to write values >20 bytes?
I've tried the following, in TypeScript:
const writeBytesBuffered = async (
characteristic: BluetoothRemoteGATTCharacteristic
bytes: Uint8Array,
index: number = 0
): Promise<void> => {
while (index < bytes.length) {
await characteristic.writeValue(bytes);
index += 20;
}
}
No errors are thrown but presumably my device's GATT server doesn't know what to do with them and fails silently.
