Azure-cli: Az login - JavaScript is required to sign in

[uday31in]

Describe the bug
az login causes command to hang in bash shell

To Reproduce
Run az login from bash on Windows.

Expected behavior
az login to prompt for devicelogin

Environment summary

uday@DESKTOP-RGMO1N7:~$ az --version
azure-cli (2.0.41)

acr (2.0.28)
acs (2.1.3)
advisor (0.5.1)
ams (0.1.1)
appservice (0.1.36)
backup (1.1.2)
batch (3.2.4)
batchai (0.3.1)
billing (0.1.8)
cdn (0.0.14)
cloud (2.0.15)
cognitiveservices (0.1.13)
command-modules-nspkg (2.0.1)
configure (2.0.17)
consumption (0.3.1)
container (0.2.1)
core (2.0.41)
cosmosdb (0.1.21)
dla (0.1.0)
dls (0.0.22)
dms (0.0.1)
eventgrid (0.1.12)
eventhubs (0.1.3)
extension (0.1.0)
feedback (2.1.3)
find (0.2.11)
interactive (0.3.25)
iot (0.1.21)
keyvault (2.0.23)
lab (0.0.22)
maps (0.2.0)
monitor (0.1.8)
network (2.1.5)
nspkg (3.0.2)
policyinsights (0.1.0)
profile (2.0.27)
rdbms (0.2.5)
redis (0.2.14)
reservations (0.2.1)
resource (2.0.32)
role (2.0.26)
servicebus (0.1.2)
servicefabric (0.0.12)
sql (2.0.27)
storage (2.0.35)
vm (2.0.35)

Extensions:
dev-spaces-preview (0.1.6)
storage-preview (0.1.3)

Python location '/opt/az/bin/python3'
Extensions directory '/home/uday/.azure/cliextensions'

Python (Linux) 3.6.1 (default, Jul 2 2018, 18:43:15)
[GCC 4.8.4]

Additional context
Add any other context about the problem here.

[troydai]

By default az login opens up a browser for you to authenticate yourself. If in your environment the condition is not fit you can use the command az login --use-device-code to fall back to a text-based interactive login.

[uday31in]

Many uses bash on Windows and this new default breaks authentication flow.

[yugangw-msft]

@uday31in, az login should work with bash on window, as CLI has particular logics for that, which was recommended by WSL team. Can you run uname -r and share with me the output?

[yugangw-msft]

please reactivate with more info

[troydai]

Close till more details are provided.