[BUG] Response was not set, make sure SendAsync was called

[aspallsux]

Library name and version

Azure.Storage.Blobs 12.23.0

Describe the bug

Sometimes when calling methods in Azure.Storage.Blobs, an InvalidOperationException is thrown with the message Response was not set, make sure SendAsync was called.

Expected behavior

Methods should not throw, or should throw RequestFailedException.

Actual behavior

Attached a partial stack trace from App Insights where Azure.Core.Pipeline.RedirectPolicy.ProcessAsync is the final call, implying it's the cause:

error.json

It looks like it comes from this line, which accesses message.Response:

azure-sdk-for-net/sdk/core/Azure.Core/src/Pipeline/RedirectPolicy.cs

Line 57 in a915359

Response response = message.Response;

Other places in code (e.g., RetryPolicy) check whether a Response exists before accessing the property:

azure-sdk-for-net/sdk/core/Azure.Core/src/Pipeline/RetryPolicy.cs

Line 117 in a915359

if (lastException != null || (message.HasResponse && message.Response.IsError))

Reproduction Steps

Random.

Environment

No response

[github-actions]

Thank you for your feedback. Tagging and routing to the team member best able to assist.

[jsquire]

@m-nash: Would you please take a look?

[aspallsux]

Any update on this @jsquire @m-nash? Still seeing it as of today.

error_20250314.json

[m-nash]

@aspallsux are you adding any custom redirect policies when you construct your client?

[christothes]

This may be the same as #33294 (comment)

edit: Sorry, it's not the same since we are on a late enough version of System.Diagnostics.DiagnosticSource

[aspallsux]

are you adding any custom redirect policies when you construct your client?

@m-nash I'm not familiar with blob client policies, and we're using an internal library that implements the blob storage stuff for us so I can't be 100% sure, but the impression I get from reading their code is "no".

They add three policies which do the following:

1. Add APIM headers
2. Add auth headers
3. Add a SAS token header

Let me know if you need more info.