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508Loop Detected

The server stopped because the operation was going round in circles.

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A WebDAV operation that walks a tree of resources referencing each other in a cycle. The server detects the loop and stops rather than running until it exhausts memory.

It is a protective response rather than a failure: the alternative to returning 508 is a request that never completes. The underlying fix is to break the circular reference in the resource tree itself.

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1xx Informational (4)
2xx Success (10)
3xx Redirection (8)
4xx Client errors (31)
5xx Server errors (16)