How can client applications effectively handle or prevent HTTP 408 errors when dealing with potentially 1-hour long operations?

Client applications can mitigate or handle HTTP 408 errors for 1-hour long operations by: 1. **Asynchronous Processing with Polling**: Instead of a single long HTTP request, trigger a background task on the server which immediately responds with a job ID (202 Accepted). The client can then periodically poll a status endpoint to check the job's progress. 2. **Resumable Uploads/Chunking**: For large file uploads, break the file into smaller chunks and upload them sequentially. This allows resuming from the last successfully uploaded chunk if a disconnection occurs. 3. **Robust Retry Mechanisms**: Implement intelligent retry logic with exponential backoff for transient 408 errors, especially if network instability is a factor. 4. **WebSockets or Server-Sent Events (SSE)**: For operations requiring continuous communication, these protocols offer more persistent connections that can push updates from the server over extended periods, avoiding typical HTTP request timeouts. 5. **User Feedback**: Provide clear progress indicators and messages to the user about the long-running nature of the operation and any network issues encountered.