“Authentication not in correct format” when setting Azure Blob Service Properties (REST API)

Question

I am trying to set CORS rules on my Azure Blob Storage account by following these instructions.

This is the error I receive after making my request:

Answer 1

For people reaching this page and wondering why you get this error even though you are using a Shared Access Signature URL, then you most likely are sending YOUR APP token to Azure. Make sure to NOT include the Authorization header in this case.