HTTP 307 Temporary Redirect vs 407 Proxy Authentication Required
HTTP 307 (Temporary Redirect) is a 3xx Redirection response, while 407 (Proxy Authentication Required) is a 4xx Client Error response. 307 indicates that the resource temporarily resides at a different URL. Unlike 302, this guarantees the HTTP method will NOT be changed. In contrast, 407 means that the client must first authenticate itself with the proxy.
Description
The resource temporarily resides at a different URL. Unlike 302, this guarantees the HTTP method will NOT be changed.
When You See It
When you need a temporary redirect that preserves the request method (POST stays POST).
How to Fix
Follow the Location header using the same HTTP method.
Description
The client must first authenticate itself with the proxy.
When You See It
When accessing the internet through a corporate proxy that requires authentication.
How to Fix
Configure proxy credentials in your HTTP client or browser settings.
Key Differences
307 is a 3xx Redirection response, while 407 is a 4xx Client Error response.
HTTP 307: The resource temporarily resides at a different URL. Unlike 302, this guarantees the HTTP method will NOT be changed.
HTTP 407: The client must first authenticate itself with the proxy.
You encounter 307 when when you need a temporary redirect that preserves the request method (POST stays POST).
You encounter 407 when when accessing the internet through a corporate proxy that requires authentication.
When to Use Which
For 307 (Temporary Redirect): Follow the Location header using the same HTTP method. For 407 (Proxy Authentication Required): Configure proxy credentials in your HTTP client or browser settings.