Can't connect Espruino Web IDE to Puck using Web Bluetooth

Hi Gordon,

Manually installed Chrome and it now gets a bit further....

I now get a Pairing dialogue with a name that matches my Puck. Selecting that and clicking Pair I get another Connection Failed message with a different reason:

Set Slow Write = true
>>> Connecting to Puck.js af7e
BT>  Device Name:       Puck.js af7e
BT>  Device ID:         xxxxxxxxxxxxxxxxxxxxxxxxxxxx
BT> ERROR: TypeError: Cannot read property 'join' of undefined
ERROR: [notify error] Connection Failed
>>> Connection Failed.

Any ideas what this might be?

Thanks, David

P.S. nRF Connect can connect to the Puck ok.