412 Precondition Failed

One or more conditions given in the request header fields evaluated to false when tested on the server.

This response code allows the client to place preconditions on the current resource state (its current representations and metadata) and, thus, prevent the request method from being applied if the target resource is in an unexpected state.

HTTP статус в Rails :precondition_failed

HTTP статус в Go http.StatusPreconditionFailed

HTTP статус в Symfony Response::HTTP_PRECONDITION_FAILED

HTTP статус в Python 2 httplib.PRECONDITION_FAILED

HTTP статус в Python 3+ http.client.PRECONDITION_FAILED

HTTP статус в Python 3.5+ http.HTTPStatus.PRECONDITION_FAILED

← Вернуться на httpstatus.ru