Spring Rest Controller with Byte Array file

I am trying to send a byte array of a file content from angular to the rest api. But I am getting Http 403 forbidden. I don't have any security enabled. I am not sure what I am doing wrong. I tried couple of different MIME types. The below is the http post from angular js and the $scope.encoded_file has the file in byte array.

$http({  method:'POST',  url:'http://localhost:9200/docupload',  data:{'content':$scope.encoded_file,'name':'test','type':'pdf'},  headers:{'Content-Type':'application/octet-stream'}  }).success(function(){});  };

DocUploadService

  @RestController  public class DocUploadService {  @RequestMapping(value="/docupload",method={RequestMethod.GET,RequestMethod.POST},consumes="application/octet-stream")  public String UploadDocuments(@RequestParam(value="content")byte[] content,@RequestParam(value="type") String type,@RequestParam(value="name") String name) throws IOException    {        System.out.println("****Inside DocUpload*****");}}

The request doesnt reach to the service of course and I dont know why I am getting 403. Any idea?

Request Headers:

Added @CrossOrigin in before the service method but still no luck

Did the below added the CrossOrigin to the controller method.

public class DocUploadService {@CrossOrigin(origins = "http://localhost:9200")@RequestMapping(value="/docupload",method={RequestMethod.GET,RequestMethod.POST,RequestMethod.OPTIONS,RequestMethod.PUT},consumes="application/octet-stream")

Also, added global CORS registry.

 @EnableWebMvc public class WebMVCconfig extends WebMvcConfigurerAdapter { @Override public void addCorsMappings(CorsRegistry registry) {    // TODO Auto-generated method stub    registry.addMapping("/docupload")    .allowedOrigins("http://localhost:9200")    .allowedMethods("POST", "GET","OPTION","PUT");    super.addCorsMappings(registry);}