Expired SAS Token Causes Recursive Network Calls in Azure Web App Sample

In the Azure Web App sample, the SAS token appears to be expired. When this happens, the application attempts to retrieve a new SAS token but fails to handle the error properly. 
**Screenshot / Network Tab Evidence:**
https://github.com/user-attachments/assets/a0a5a32b-a6b2-4cda-a37f-1678c86646d0