Status: 425
425 Too Early
Limited availability
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The HTTP 425 Too Early client error response status code indicates that the server was unwilling to risk processing a request that might be replayed to avoid potential replay attacks.
If a client has interacted with a server recently, early data (also known as zero round-trip time (0-RTT) data) allows the client to send data to a server in the first round trip of a connection, without waiting for the TLS handshake to complete. A client that sends a request in early data does not need to include the Early-Data header. See Early-Data for more information.
Status
425 Too Early
Specifications
| Specification |
|---|
| Using Early Data in HTTP> # status> |
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
425 |
No | No | 58 | No | No | No | 58 | No | No | No | No | No |
See also
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https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/425