Add support for CORS

src/main/java/cern/c2mon/client/atmosphere/C2MonAtmosphereApplication.java

@@ -17,6 +17,8 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.Ordered;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
 import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 
@@ -34,6 +36,13 @@ public class C2MonAtmosphereApplication extends SpringBootServletInitializer {
 		public void addViewControllers(ViewControllerRegistry registry) {
 			registry.addViewController("/").setViewName("forward:/index.html");
 		}
+		
+		@Override
+		public void addCorsMappings(CorsRegistry registry) {
+			registry.addMapping("/**")
+			        .allowedOrigins(CorsConfiguration.ALL)
+			        .allowedMethods("PUT", "DELETE","GET", "POST", "HEAD", "OPTIONS");
+		}
 	}
 
 	@Bean
@@ -51,6 +60,7 @@ public class C2MonAtmosphereApplication extends SpringBootServletInitializer {
 		registration.setLoadOnStartup(0);
 		// Need to occur before the EmbeddedAtmosphereInitializer
 		registration.setOrder(Ordered.HIGHEST_PRECEDENCE);
+		//registration.addInitParameter("org.atmosphere.cpr.AtmosphereInterceptor", "org.atmosphere.interceptor.CorsInterceptor,org.atmosphere.interceptor.HeartbeatInterceptor");
 		return registration;
 	}