We have taken over a power portal site and blob storage is enabled for it.
We can see that the documents are successfully uploaded to the blob storage.
To retrieve the document from blob storage the form has a link in this format
https://{portal_site_address}/_entity/annotation/{annotationid}/{portal_siteid}
But in one of our environments it is not working.
In our test environment is working fine and when this link is triggered it is redirected to blob storage.

Does anyone know how this re-direction is happening?