http.post is not working

Question

I am trying to submit a form to an API with the http post. Angular, but I’m not getting it:

Code:

save(auditoria):Observable <{}>{
    let headers = new Headers();
        headers.append('Content-Type', 'application/json');
    let options = new RequestOptions({ headers: headers });

    return this.http.post(`${Utils.WEBSERVICE}/api/audit`, auditoria, options).map( (res:Response) => res.json());
}

This is how it looks on the console

Request URL:http://147.1.5.114/webservice/api/Audit

Request Method:OPTIONS

Status Code:404 Not Found

In my API there is nothing that receives Verb Options, when I do the same sending using the POSTMAN everything happens normal, only it doesn’t work for the application I’m building.