HTTP 508 Loop Detected — Infinite Redirect or Binding Loop

HTTP 508 Loop Detected means the server detected an infinite loop while processing a request with Depth: infinity, commonly in WebDAV operations. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Defined in RFC 5842 for WebDAV Binding Extensions. Server detected an infinite loop during a Depth: infinity operation. Can occur with circular symbolic links or resource bindings. The server terminates the operation to prevent infinite resource consumption. Similar concept to infinite redirect loops but at the resource binding level. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Circular symbolic links in WebDAV-mounted directories. Circular resource bindings in WebDAV collections. Recursive directory structures creating infinite depth. Misconfigured redirect rules creating loops (though typically 301/302 loops). Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Check for circular symbolic links: find /path -type l -ls. Remove or fix circular bindings in WebDAV resource configuration. Limit recursion depth in your WebDAV client requests. Check server redirect rules for circular patterns. Use Depth: 1 instead of Depth: infinity for WebDAV operations. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

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