HTTP 102 Processing vs 412 Precondition Failed
HTTP 102 (Processing) is a 1xx Informational response, while 412 (Precondition Failed) is a 4xx Client 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, 412 means that one or more conditions in the request headers (If-Match, If-Unmodified-Since) evaluated to false.
Описание
The server has received and is processing the request, but no response is available yet. Prevents the client from timing out.
Когда вы это видите
During long-running WebDAV operations.
Как исправить
Wait for the final response. This is an interim status to prevent timeouts.
Описание
One or more conditions in the request headers (If-Match, If-Unmodified-Since) evaluated to false.
Когда вы это видите
When using conditional requests with ETags and the resource has changed.
Как исправить
Refresh the ETag/Last-Modified value and retry with updated preconditions.
Ключевые различия
102 is a 1xx Informational response, while 412 is a 4xx Client 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 412: One or more conditions in the request headers (If-Match, If-Unmodified-Since) evaluated to false.
You encounter 102 when during long-running WebDAV operations.
You encounter 412 when when using conditional requests with ETags and the resource has changed.
Когда что использовать
For 102 (Processing): Wait for the final response. This is an interim status to prevent timeouts. For 412 (Precondition Failed): Refresh the ETag/Last-Modified value and retry with updated preconditions.