Unable to delete blobstore objects

[benjamw]

I am using blobstore.UploadURL with the StorageBucket value set to store the file in a Cloud Storage Bucket instead of the blobstore. (See #63)

The files store properly in the Cloud Storage, but a duplicate of the file also gets stored in blobstore, and no matter what I do, I cannot delete the file.

I've tried deleting the file from through the console, and via go with blobstore.Delete with no luck in either case.