permanentRedirect constant

int const permanentRedirect

permanentRedirect = 308.

This means that the resource is now permanently located at another URI, specified by the Location: HTTP Response header.

This has the same semantics as the 301 Moved Permanently HTTP response code, with the exception that the user agent must not change the HTTP method used: if a POST was used in the first request, a POST must be used in the second request.

https://tools.ietf.org/html/rfc7538#section-3

Implementation

static const int permanentRedirect = 308;