func (b *backend) updateSettings(be engine.Backend) error { olds := b.backend.HTTPSettings() news := be.HTTPSettings() // Nothing changed in transport options if news.Equals(olds) { return nil } s, err := b.mux.transportSettings(be) if err != nil { return err } t := newTransport(s) b.transport.CloseIdleConnections() b.transport = t for _, f := range b.frontends { f.updateTransport(t) } return nil }