No image in notification

Hello,

When motion is detected, I take a snapshot of my camera.

When sending a notification using my IP-adres of my server, it works fine :

service: notify.notification_devices
data:
  message: Bezoek aan de voordeur om {{ now().strftime("%d/%-m/%-Y om %H:%M:%S") }}
  data:
    channel: alarm_stream
    image: http://192.168.1.6:8123/local/tmp/snapshot-voordeur.jpg
    entity_id: camera.camera_voordeur_proxy
    actions:

Of course, this will not work outside my home. So I changed it like that :

service: notify.notification_devices
data:
  message: Bezoek aan de voordeur om {{ now().strftime("%d/%-m/%-Y om %H:%M:%S") }}
  data:
    channel: alarm_stream
    image: https://xxx.duckdns.org/local/tmp/snapshot-voordeur.jpg
    entity_id: camera.camera_voordeur_proxy
    actions:

But then I don’t get any picture in my notification.

When pasting the url (https://xxx.duckdns.org/local/tmp/snapshot-voordeur.jpg) in my browser I see the image.

Any idea ?

try using a relative URL instead of a full URL like the example from the docs

Thank you, works super !