in iis-smbshare-sqlserver/typescript/lib/constructs/alb-stack.ts [14:18]
public addListener(id: string, props: elbv2.BaseApplicationListenerProps): elbv2.ApplicationListener {
// cast to any so we can override a "readonly" property.
(props.sslPolicy as any) = elbv2.SslPolicy.FORWARD_SECRECY_TLS12;
return super.addListener(id, props);
}