Should the results of POST requests be cached?

Results of POST requests are usually not cacheable, as POST is used for creating or modifying resources, and reusing the response can lead to incorrect behavior. In the HTTP protocol, GET requests are considered idempotent and are more often cached, whereas POST requests are not. However, if the server explicitly specifies caching headers (e.g., Cache-Control), caching may be possible, but this is a rare and specific case.