425 Too Early

Experimental

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The HyperText Transfer Protocol (HTTP) 425 Too Early response status code indicates that the server is unwilling to risk processing a request that might be replayed, which creates the potential for a replay attack.

Status

425 Too Early

Specifications

Specification Title
RFC 8470, section 5.2: 425: Early Data Using Early Data in HTTP

Browser compatibility

BCD tables only load in the browser