HTTP 303 See Other tells the client to retrieve the resource at a different URL using a GET method, regardless of the original request method. This is the correct redirect to use after a POST (form submission, API call) when you want to redirect to a result page — the classic Post/Redirect/Get (PRG) pattern that prevents duplicate form submissions when users hit refresh.
Response includes the status code, standard headers (including Content-Type), and a small diagnostic JSON body describing the request and returned status.
Simulator URL (copy in the app after load — not a normal link):
https://httpstatus.com/api/status/303
Example request:
curl -i "https://httpstatus.com/api/status/303"