Cross Origin On Spring Boot From Chrome Extension

In my spring application, I have a method: @CrossOrigin(origins='*') @PostMapping('/datum') Datum test(@RequestBody String data) { return repository.save(new Datum(data)); } I

Solution 1:

In my @SpringBootApplication annoted class, I added this :

@Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**").allowedOrigins("*");
            }
        };
    }

And in manifest.json:

"permissions": [
    "activeTab",
    "tabs",
    "background",
    "http://*/"
  ]

Now it works.