GetMetaData fails with unknown errors (-13020)

[sipersso]

Description

For some users calls to getMetaData fails with StorageError.unknown. Underlying error code is -13020, which seems to suggest "unauthenticated" errors. Users are signed in. It looks like it is intermittent and does go away for most users (although I am not 100% sure if it applies to all users).

Any ideas what this is? It is not super common, but seeing these for around 1% of user sessions. Could it be that an id token has expired just as the user is about to get metadata? Is there anything I could do to mitigate?

Reproducing the issue

I have not been able to reproduce this on my end.

Firebase SDK Version

11.12.0

Xcode Version

16.2

Installation Method

Swift Package Manager

Firebase Product(s)

Storage

Targeted Platforms

iOS

Relevant Log Output

If using Swift Package Manager, the project's Package.resolved

Expand Package.resolved snippet

Replace this line with the contents of your Package.resolved.

If using CocoaPods, the project's Podfile.lock

Expand Podfile.lock snippet

Replace this line with the contents of your Podfile.lock!

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[rizafran]

Thanks for reporting, @sipersso. Based on our docs, the error code -13020 means that User is unauthenticated. Authenticate and try again..You may try checking your security rules if configured correctly (see our docs for more info). Also, may I know if you enabled App Check enforcement?

[sipersso]

App check is not enabled, users are signed in. They are reaching out to support while signed into to their accounts. The problem seems to go away for them without having to sign in again.

I have verified the security rules. If they were incorrect no one would have been able to upload. Now it is an intermittent error