A reserved port states its exposure only when it diverges
The rule
Normative: this is the rule
- An injected reserved port declares
x-exposed-by-default: falseonly where that diverges from the default of true. - Where it is exposed by default it says nothing, and a reader takes silence as exposed.
Rule identifiers are permanent and are never renumbered. Each implementation publishes its own standing against these rules; this specification does not.spec 1.0-draft · SCH-15 · changed in spec 1.0