problem-details-ktor/io.github.ilyankin.rfc9457.ktor/blank

blank

fun Problem.Companion.blank(status: HttpStatusCode): Problem(source)

The about:blank problem for status, with the title taken from Ktor's own reason phrase.

RFC 9457 §4.2.1 says about:blank SHOULD carry the status code's standard reason phrase as title. HttpStatusCode.description is exactly that table. Core can't offer this overload itself, since it must not depend on Ktor.

The title is only as good as status's description: for a code Ktor doesn't know, that's the literal "Unknown Status Code", not a real reason phrase. Construct the HttpStatusCode with the real phrase (HttpStatusCode(499, "Client Closed Request")) for codes outside Ktor's table.