HTTP 413 Payload Too Large (formerly 'Request Entity Too Large') indicates the request body exceeds the server's willingness or ability to process. The server may close the connection to prevent further transmission. Common limits: nginx defaults to 1MB (client_max_body_size), Apache to ~2GB, Express body-parser to 100KB. The server SHOULD include a Retry-After header if the condition is temporary.
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/413
Example request:
curl -i "https://httpstatus.com/api/status/413"