>appropriately formatted If the server is expecting data that it doesn't receive (because the form field was left blank) then can you really consider the reque

>appropriately formatted If the server is expecting data that it doesn't receive (because the form field was left blank) then can you really consider the request "appropriately formatted"? Is it in any way meaningfully different from the case where the server receives a request on /api/invalid-url/ and doesn't have a corresponding resource on its end?