HTTP 102 Processing vs 501 Not Implemented
HTTP 102 (Processing) is a 1xx Informational response, while 501 (Not Implemented) is a 5xx Server Error response. 102 indicates that the server has received and is processing the request, but no response is available yet. Prevents the client from timing out. In contrast, 501 means that the server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to fulfill it.
Description
The server has received and is processing the request, but no response is available yet. Prevents the client from timing out.
When You See It
During long-running WebDAV operations.
How to Fix
Wait for the final response. This is an interim status to prevent timeouts.
Description
The server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to fulfill it.
When You See It
When using an HTTP method (like PATCH) that the server doesn't support.
How to Fix
Use a different HTTP method that the server supports. Check server documentation.
Key Differences
102 is a 1xx Informational response, while 501 is a 5xx Server Error response.
HTTP 102: The server has received and is processing the request, but no response is available yet. Prevents the client from timing out.
HTTP 501: The server does not support the functionality required to fulfill the request. The server either does not recognize the request method or lacks the ability to fulfill it.
You encounter 102 when during long-running WebDAV operations.
You encounter 501 when when using an HTTP method (like PATCH) that the server doesn't support.
When to Use Which
For 102 (Processing): Wait for the final response. This is an interim status to prevent timeouts. For 501 (Not Implemented): Use a different HTTP method that the server supports. Check server documentation.