HTTP registry: respond-async

Indicates that the client prefers that the server respond asynchronously to a request.

HTTP parameter values extend negotiation, framing, preferences, range handling, or other protocol components. respond-async is registered in HTTP Preferences. Defining reference: rfc7240.

httpregistryhttp-parameterspreferences

Identifier (http)

respond-async

Indicates that the client prefers that the server respond asynchronously to a request.

Interpret parameters only in the context that defines them; unknown parameters must not silently change security or framing behavior.

This registry value is currently marked active by IANA. Follow the defining specification before sending, accepting, or proxying it.

IANA registry: http-parameters/preferences

Registry reference: rfc7240

Sources

HTTP Preferences
rfc7240