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HTTP Status Codes

HTTP 508 Loop Detected

508 Loop Detected

The server terminated an operation because it encountered an infinite loop while processing the request.

508 Loop Detectedgeneral

Observed message

508 Loop Detected

Why it happens

  • The server encountered a cyclic reference while processing the request.
  • A recursive resource traversal or routing rule created an infinite loop.
  • Server-side logic or WebDAV-style processing repeated the same operation without termination.

How to fix it

  1. Review the server-side processing path for recursive logic or cyclic references.
  2. Check routing, rewrite, or resource traversal rules that may loop back into themselves.
  3. If the issue is tied to structured resources, break the cycle and retry the operation.

Official reference

MDN: 508 Loop Detected

Related errors

400 Bad RequestHTTP 400 Bad Request404 Not FoundHTTP 404 Not Found406 Not AcceptableHTTP 406 Not Acceptable410 GoneHTTP 410 Gone

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508 Loop Detected: what it means and how to fix it | Error Atlas