Preference-Applied
IANA permanent
response
RFC 7240
Declared by 3 providers across 15 published specification files in the APIs.io network.
A count here is providers whose published contract declares this header — not
providers who send it. Response headers set at the edge rarely appear in an OpenAPI at all, so a low
number can measure documentation practice rather than deployment.
The registry
| Status | permanent |
|---|---|
| Reference | RFC 7240: Prefer Header for HTTP |
Providers declaring it (3)
cdk-global insforge microsoft-azure
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