Why HttpPost isn't working in WebApi

Question

I am making an ajax request from the clientside to my web service built in web api.

Here is the client side code :

 

$.ajax({

url: "http://localhost:1583/api/storage/processing/v1/preview/test.docx",

type: "POST",

contentType: "application/json; charset=utf-8",

dataType: "json",

cache: false,

responseType: "json",

beforeSend: onProgress,

success: GenerateHtml,

complete: onComplete,

error: onFail

});

 

Here is the controller's code:

[HttpPost]

[Route(WebApiConfig.RootApiUri + "/v1/preview/{docid}")]

public async Task<List<HtmlViewInformationV1Dto>> Preview(string docid)

{

    ///...ommitted the code..///

}

 HttpPost isn't working, however if change it to HttpGet it works.

 Any help on this would be greatly appreciated. Thanks.