Function onAltSvc

lib/internal/http2/core.js:685–693

(stream, origin, alt)

}

function onAltSvc(stream, origin, alt) {
  const session = this[kOwner];
  if (session.destroyed)
    return;
  debugSessionObj(session, 'altsvc received: stream: %d, origin: %s, alt: %s',
                  stream, origin, alt);
  session[kUpdateTimer]();
  session.emit('altsvc', alt, origin, stream);
}

function initOriginSet(session) {
  let originSet = session[kState].originSet;