Launch Dashboard in JupyterLab button does not work for gateway cluster backed client

[jbusecke]

Describe the issue:
I am working on the leap hub provided by 2i2c using the pangeo/pangeo-notebook:2024.04.08 image

Minimal Complete Verifiable Example:

# lets get some help
from dask_gateway import Gateway
gateway = Gateway()
cluster = gateway.new_cluster()
client = cluster.get_client()
client

Gives me

But pressing the button does not do anything.

Anything else we need to know?:

I confirmed that both of the following work:

• copy pasting the link to dashboard into the extension
• The above but using a LocalCluster

from distributed import Client
client_local = Client()
client_local

So the issue must be somehow specific to dask gateway?

Environment:

Using the pangeo/pangeo-notebook:2024.04.08 image