Grafana Graph with API

Hi,
I’m trying to embed a Grafana Graph which uses an API to authenticate. The following works correctly, unauthenticated.

type: iframe
url: >-
  https://grafana.smartmotion.life/d-solo/bekdb4mgddg5cb/thirkell-forecasts?orgId=1&timezone=browser&refresh=5m&theme=light&panelId=1&__feature.dashboardSceneSolo
aspect_ratio: 50%
grid_options:
  columns: full
  rows: 7
card_mod:
  style: |
    ha-card { background: var(--card-background-color); }

However if I try to do something like this…

https://viewer:[email protected]/d-solo/a39baae6-4be1-418a-bf1d-7c30477231e9/electricity-forecasts?orgId=1&timezone=browser&theme=light&panelId=1&__feature.dashboardSceneSolo

I get this error

Did you check this issue?
It is solved there.