the error is as follows:

Code:

list(criteria: RecommendModel) {
    return this.http.post("http://music.163.com/weapi/personalized/newsong",
      criteria,
      {
       /* headers: this.headers*/
        headers: new HttpHeaders({
          "Accept": "*/*",
          "Accept-Language": "zh-CN,zh;q=0.8,gl;q=0.6,zh-TW;q=0.4",
          "Content-Type": "application/x-www-form-urlencoded"
        })
      })
      .toPromise()
      .then((data: any) => {
        return data;
      })
      .catch((err) => {
        console.log(err);
      });
  } 

is there anything else I need to deal with besides setting up headers? The
interface is from
https://binaryify.github.io/N.