Blob storage URLs do not work

Hi ,

Thanks for reaching out to Microsoft Q&A.

This issue usually happens because of changes in how azure blob storage handles public access. Earlier, containers often defaulted to allowing anonymous blob access, so direct URLs worked without extra configuration. Recently, Microsoft has made public access disabled by default for new storage accounts and containers, which means that while you can upload files, the URLs will not resolve unless you explicitly allow access. That explains why your older container still works, but the new one does not. It is also possible that the storage account now requires access through SAS tokens or has network restrictions such as private endpoints or firewalls enabled. To resolve this, check the container’s public access settings in the portal and compare them with the container that works. If anonymous access is disabled and you want public URLs, you will need to enable it at the container level. Otherwise, the recommended approach is to generate SAS tokens for secure access. This ensures that your files remain accessible without opening the storage account broadly to the internet.

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Hi Edwin,

Thank you for reaching out on Microsoft Q&A forum.

To your query:Blob storage URLs do not work.

Please Compare with Working Container & Look for differences in:

1.Access policies

2.Blob naming conventions

3.Anonymous access at container level.

To update the anonymous access level for container

Please find the reference link below

https://learn.microsoft.com/en-us/azure/storage/blobs/anonymous-read-access-configure?tabs=portal

Just for the information you can take reference of below image as well.

Alternate way to access is via SAS token:

A shared access signature (SAS) provides secure delegated access to resources in your storage account,with a SAS, you have granular control over how a client can access your data.

To configure the SAS for alternate way, please find the link below for reference

https://learn.microsoft.com/en-us/azure/storage/common/storage-sas-overview?toc=%2Fazure%2Fstorage%2Fblobs%2Ftoc.json&bc=%2Fazure%2Fstorage%2Fblobs%2Fbreadcrumb%2Ftoc.json

Make sure the URL you’re using to access the blob follows the correct format: https://<storage-account>.blob.core.windows.net/<container-name>/<blob-name>.

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Please let us know if you have any further queries.

Thanks