请求有效负载中的数组

Question

I am sending some image data to backened server. The problem is that, for the same code the request payload is different at our different server.

So i am making an request like this :

 sign_type.push("string");

And adding this to fields like this :

 fields.sign_type = sign_type;
 fields.image_data = imageDataArray;

And making call like this :

     Upload.upload({
                    url: 'api/test',
                    method: 'POST',
                   file: files,
               imageData: imageDataArray,
                  fileName: filesName,
                  fields: fields,
                 fileFormDataName: 'file'
        }).success(function (response, status, headers, config) {
//                     
        }).error(function (data, status, headers, config) {

       });

But the problem is that for this same code i get different request payload at different server :

Server 1 (Working fine)

------WebKitFormBoundaryIWviAIcICxBA9gts Content-Disposition: form-data; name="sign_type[0]"

string

------WebKitFormBoundaryIWviAIcICxBA9gts Content-Disposition: form-data; name="sign_type[1]"

string

------WebKitFormBoundaryIWviAIcICxBA9gts Content-Disposition: form-data; name="image_data[0]"

Sever 2( not working) :

------WebKitFormBoundaryWb0UyBYCZAa6YGAG Content-Disposition: form-data; name="sign_type"

["string","string"]

------WebKitFormBoundaryWb0UyBYCZAa6YGAG Content-Disposition: form-data; name="image_data"