invalid cors request spring boot code example

Example 1: spring security enable global cors

@Override
	public void configure(HttpSecurity http) throws Exception {
		http.cors().configurationSource(request -> new CorsConfiguration().applyPermitDefaultValues())
 		// ...
	}


	@Bean
	public WebMvcConfigurer corsConfigurer() {
		return new WebMvcConfigurer() {
			@Override
			public void addCorsMappings(CorsRegistry registry) {
				registry.addMapping("/**")
				.allowedOrigins("*")
				.allowedMethods("GET", "PUT", "POST", "PATCH", "DELETE", "OPTIONS");
			}
		};
	}

Example 2: spring cors

public WebMvcConfigurer corsConfigurer() {
		return new WebMvcConfigurer() {
			@Override
			public void addCorsMappings(CorsRegistry registry) {
				registry.addMapping("/greeting-javaconfig").allowedOrigins("http://localhost:9000");
			}
		};
	}Copy

Example 3: spring boot put invalid cors request

@Override
public void addCorsMappings(CorsRegistry registry) {
	registry.addMapping("/api/**")
		.allowedOrigins("http://domain2.com")
		.allowedMethods("PUT", "DELETE")
			.allowedHeaders("header1", "header2", "header3")
		.exposedHeaders("header1", "header2")
		.allowCredentials(false).maxAge(3600);
}Copied