Changed to LegacyCookieProcessor because default doesn't allow to use [.second-level-domain.top-level-domain] as a domain for cookie
@Bean
public WebServerFactoryCustomizer<TomcatServletWebServerFactory> webServerFactoryCustomizer() {
return tomcatServletWebServerFactory -> tomcatServletWebServerFactory.addContextCustomizers(
(TomcatContextCustomizer) context -> context.setCookieProcessor(new LegacyCookieProcessor())
);
}