Vaadin wrong route after login - spring-security

Question

I implemented a login with this
https://vaadin.com/docs/latest/tutorial/login-and-authentication
docs.
I also added a view with RouteAlias("") but after login I got redirected to
/sw-runtime-resources-precache.js
This looks really weird. I tried to find a place to manually set the redirect to a path or route but I did not find a solutions yet. Does anybody know why I did not get redirected to the home path?
This is my Security Config
#EnableWebSecurity
#Configuration
public class SecurityConfiguration extends WebSecurityConfigurerAdapter
{
#Resource
private UserDetailsService userDetailsService;
private static final String LOGIN_PROCESSING_URL = "/login";
private static final String LOGIN_FAILURE_URL = "/login?error";
private static final String LOGIN_URL = "/login";
private static final String LOGOUT_SUCCESS_URL = "/login";
#Override
protected void configure(HttpSecurity http) throws Exception
{
// Vaadin handles CSRF internally
http.csrf().disable()
// Register our CustomRequestCache, which saves unauthorized access attempts, so the user is redirected after login.
.requestCache().requestCache(new CustomRequestCache())
// Restrict access to our application.
.and().authorizeRequests()
// Allow all Vaadin internal requests.
.requestMatchers(SecurityUtils::isFrameworkInternalRequest).permitAll()
// Allow all requests by logged-in users.
.anyRequest().authenticated()
// Configure the login page.
.and().formLogin()
.loginPage(LOGIN_URL).permitAll()
.loginProcessingUrl(LOGIN_PROCESSING_URL)
.failureUrl(LOGIN_FAILURE_URL)
// Configure logout
.and().logout().logoutSuccessUrl(LOGOUT_SUCCESS_URL);
}
#Bean
public DaoAuthenticationProvider authProvider()
{
DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider();
authProvider.setUserDetailsService(userDetailsService);
authProvider.setPasswordEncoder(passwordEncoder());
return authProvider;
}
#Bean
public PasswordEncoder passwordEncoder()
{
return new BCryptPasswordEncoder();
}
#Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception
{
auth.authenticationProvider(authProvider());
}
/*#Bean
#Override
public UserDetailsService userDetailsService()
{
UserDetails user = User.withUsername("user")
.password("{noop}userpass")
.roles("USER")
.build();
return new InMemoryUserDetailsManager(user);
}*/
/**
* Allows access to static resources, bypassing Spring Security.
*/
#Override
public void configure(WebSecurity web)
{
web.ignoring().antMatchers(
// Client-side JS
"/VAADIN/**",
// the standard favicon URI
"/favicon.ico",
// the robots exclusion standard
"/robots.txt",
// web application manifest
"/manifest.webmanifest",
"/sw.js",
"/offline.html",
// icons and images
"/icons/**",
"/images/**",
"/styles/**",
// (development mode) H2 debugging console
"/h2-console/**");
}
}