claude-code - 💡(How to fix) Fix /ultrareview consistently failing with upstream service errors (502, 520, socket close) [2 comments, 3 participants]

Error sequence (chronological)

1. incorrect header check — zlib decompression error (Content-Encoding mismatch in cloud service response)

• The errors span multiple error classes (HTTP 502, Cloudflare 520, socket close, zlib decompression), suggesting general service instability rather than a single specific failure mode

TL;DR

The issue is likely due to upstream service instability, and applying a retry mechanism with exponential backoff may help mitigate the problem.

Guidance

• Verify the upstream service status to check for any ongoing maintenance or issues that may be causing the instability.
• Consider implementing a retry mechanism with exponential backoff to handle temporary service errors, such as increasing the delay between retries (e.g., 1s, 2s, 4s, 8s, ...).
• Check the fetch() function documentation to see if there are any options for handling socket closures or connection errors, such as passing verbose: true for more information.
• Review the error sequence to identify any patterns or correlations between error types and service responses.

Example

No code snippet is provided as the issue does not contain sufficient information about the codebase or the fetch() function implementation.

Notes

The solution may not apply if the upstream service instability is due to a persistent issue that requires a fix from the service provider. Additionally, the retry mechanism should be carefully implemented to avoid overwhelming the service with repeated requests.

Recommendation

Apply a workaround by implementing a retry mechanism with exponential backoff, as it may help mitigate the issue caused by upstream service instability.