What is HTTP 407 Proxy Authentication Required?
The 407 Proxy Authentication Required response is similar to 401, but authentication is required by a proxy server.
Common Causes
- Corporate proxy authentication
- Missing proxy credentials
- Incorrect proxy configuration
Example
HTTP/1.1 407 Proxy Authentication RequiredDevOps Considerations
This status code can appear when applications communicate through authenticated proxies.
Summary
407 Proxy Authentication Required means the proxy requires authentication before forwarding the request.