Notification image is not found

[achurak]

Hello,

For some reason my notification images through hass return 404 error. The url I use looks like this:
https://hass.domain.com/api/frigate/notifications/1608217722.789109-r2t26k.jpg
At the same time, I do see the snapshot for the same event id on the frigate endpoint:
https://frigate.domain.com/events/1608217722.789109-r2t26k/snapshot.jpg

Any idea why it's not working correctly? I'm using reverse proxy for both hass and frigate if that makes any difference.