HTTP 405 Method Not Allowed vs 424 Failed Dependency
Both HTTP 405 (Method Not Allowed) and 424 (Failed Dependency) belong to the 4xx Client Error category. 405 indicates that the HTTP method is not allowed for the requested resource. The response includes an Allow header listing valid methods. Meanwhile, 424 means that the request failed because it depended on another request that failed (WebDAV).
Description
The HTTP method is not allowed for the requested resource. The response includes an Allow header listing valid methods.
When You See It
When sending POST to a read-only endpoint, or DELETE to a non-deletable resource.
How to Fix
Check the Allow response header for supported methods. Use the correct HTTP method.
Description
The request failed because it depended on another request that failed (WebDAV).
When You See It
In batch WebDAV operations when a prerequisite action fails.
How to Fix
Fix the failed dependency first, then retry the operation.
Key Differences
HTTP 405: The HTTP method is not allowed for the requested resource. The response includes an Allow header listing valid methods.
HTTP 424: The request failed because it depended on another request that failed (WebDAV).
You encounter 405 when when sending POST to a read-only endpoint, or DELETE to a non-deletable resource.
You encounter 424 when in batch WebDAV operations when a prerequisite action fails.
When to Use Which
For 405 (Method Not Allowed): Check the Allow response header for supported methods. Use the correct HTTP method. For 424 (Failed Dependency): Fix the failed dependency first, then retry the operation.