Sec-Redemption-Record header

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

The HTTP Sec-Redemption-Record Fetch Metadata Request Header is used by the Private State Token API when forwarding redemption records. The header contains a list of issuer and redemption record pairs corresponding to each redemption record.

Note that a developer wouldn't be expected to generate Sec-Redemption-Record request headers — these are created automatically by the browser when invoking private state token send-redemption-record fetch requests.

Header type	Fetch Metadata Request Header
Forbidden request header	Yes (`Sec-` prefix)
CORS-safelisted request header	No

Syntax

http

Sec-Redemption-Record: <string>

Servers should ignore this header if it contains any other value.

Directives

<string>: A string containing issuer and redemption record pairs.

Examples

http

Sec-Redemption-Record: "https://redeemer.example";redemption-record="eyJwdWJsaWNfbWV0YWR...

Specifications

Specification
Private State Token API # sec-redemption-record

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
`Sec-Redemption-Record` Experimental	Chrome – Full support Chrome 117 (Release date: 2023-09-12) footnote Full support	Edge – Full support Edge 117 (Release date: 2023-09-15) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 103 (Release date: 2023-10-03) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – Full support Chrome Android 117 (Release date: 2023-09-12) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 78 (Release date: 2023-10-23) footnote Full support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – Full support Samsung Internet 24 (Release date: 2024-01-25) footnote Full support	WebView Android – No support WebView Android footnote No support	WebView on iOS – No support WebView on iOS footnote No support

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Full support: Full support
No support: No support
: Experimental. Expect behavior to change in the future.