METRON-1390: Swagger UI for "Web Security Config" Controller needs re…

…quest method (MohanDV via mmiklavc) closes apache#889

metron-interface/metron-rest/src/main/java/org/apache/metron/rest/config/WebSecurityConfig.java

@@ -33,6 +33,7 @@
 import org.springframework.security.web.csrf.CookieCsrfTokenRepository;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
 
 import javax.sql.DataSource;
 import java.util.Arrays;
@@ -47,7 +48,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
     @Autowired
     private Environment environment;
 
-    @RequestMapping({"/login", "/logout", "/sensors", "/sensors*/**"})
+    @RequestMapping(value = {"/login", "/logout", "/sensors", "/sensors*/**"}, method = RequestMethod.GET)
     public String handleNGRequests() {
         return "forward:/index.html";
     }