Meu Swagger abre uma pagina em branco

Ao acessar o localhost:8080/swagger-ui.html é devolvida uma página em branco

Meu SwaggerConfigurations:

package br.com.alura.forum.config.swagger;


import br.com.alura.forum.modelo.Usuario;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ParameterBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.schema.ModelRef;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;

import java.util.Arrays;

@Configuration
public class SwaggerConfigurations {

    @Bean
    public Docket api() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage("br.com.alura.forum"))
                .paths(PathSelectors.ant("/**"))
                .build()
                .ignoredParameterTypes(Usuario.class)
                .globalOperationParameters(
                        Arrays.asList(
                                new ParameterBuilder()
                                        .name("Authorization")
                                        .description("Header para Token JWT")
                                        .modelRef(new ModelRef("string"))
                                        .parameterType("header")
                                        .required(false)
                                        .build()));
    }

}

Meu SecurityConfigurations:

package br.com.alura.forum.config.security;

import br.com.alura.forum.repository.UsuarioRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

@EnableWebSecurity
@Configuration
public class SecurityConfigurations extends WebSecurityConfigurerAdapter {

    @Autowired
    private AutenticacaoService autenticacaoService;

    @Autowired
    private TokenService tokenService;

    @Autowired
    private UsuarioRepository usuarioRepository;

    @Override
    @Bean
    protected AuthenticationManager authenticationManager() throws Exception {
        return super.authenticationManager();
    }

    //Configurações de Autenticação
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(autenticacaoService).passwordEncoder(new BCryptPasswordEncoder());

    }

    //Configurações de Autorização
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers(HttpMethod.GET, "/topicos").permitAll()
                .antMatchers(HttpMethod.GET, "/topicos/*").permitAll()
                .antMatchers(HttpMethod.POST, "/auth").permitAll()
                .antMatchers(HttpMethod.GET, "/actuator").permitAll()
                .antMatchers(HttpMethod.GET, "/actuator/**").permitAll()
                .anyRequest().authenticated()
                .and().csrf().disable()
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and().addFilterBefore(new AutenticacaoViaTokenFilter(tokenService, usuarioRepository), UsernamePasswordAuthenticationFilter.class);
    }

    //Configurações de Recursos Estáticos(js, css, imagens, etc)
    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring()
                .antMatchers("/**.html", "/v2/api-docs", "/webjars/**", "/configuration/**", "/swagger-resources/**");
    }

}

na depuração de rede foi devolvido: GET http://localhost:8080/swagger-ui.html Status403 VersionHTTP/1.1 Transferred198 B (0 B size)