506
506 Variant Also Negotiates Error
What This Error Means
The 506 Variant Also Negotiates error indicates that the server has an internal configuration error: the chosen variant resource is configured to engage in transparent content negotiation itself, and is therefore not a proper end point in the negotiation process. In simpler terms, it's a circular reference in content negotiation.
Common Causes
- Misconfigured content negotiation in Apache (TypeMap).
- Circular references in .htaccess rules.
- Server configuration pointing two resources to each other.
How to Fix It (For Users)
- 1 This is a server-side configuration error. Notify the site owner.
For Site Owners / Developers
- Check your .htaccess or server config for circular content negotiation rules.
- Review 'AddHandler type-map' settings.
- Ensure your variant lists do not point back to the negotiation resource.
When It Is NOT Your Fault
Always a server configuration issue.
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