Expired anonymous token handling error "Token Expired, Try again"

[xernaj]

Please provide us with the following information:

This issue is for a: (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Minimal steps to reproduce

• Anonymous auth method, retrieve map access token from Azure Maps via App Service and System Managed Identity.
• Put tab in background.
• Wait for token to be expired ~24hrs?.
• Move map and request for tiles.

Any log messages given by the failure

Error: "Token Expired, Try again"

Expected/desired behavior

Should handle an expired token rather than throwing an exception.

OS and Version?

Windows 7, 8 or 10. Linux (which distribution). macOS (Yosemite? El Capitan? Sierra?)

• macOS 14.1
• MS Edge 118.0.2088.76

Versions

Mention any other details that might be useful

AAD might still give out a valid token (with 5 seconds left of validity) which could expire by the time the front end receives it. We cannot control or force a fresh token from AAD so expired tokens should be handled by the map library instead - auto retry or whatever rather than just throwing exception.

See problem line where it gives up: https://github.com/Azure-Samples/azure-maps-leaflet/blob/7d9786a050549e440ddb78252949689f03215574/src/internal/AuthenticationManager.ts#L264

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Thanks! We'll be in touch soon.

[xernaj]

I've also noticed this line https://github.com/Azure-Samples/azure-maps-leaflet/blob/7d9786a050549e440ddb78252949689f03215574/src/internal/AuthenticationManager.ts#L253 which seems to be providing the old token as it's in "local storage" and not cleared at end of session.