来自后端的无效JSON？角度7

Question

如果您有无效的JSON从服务器返回到前端。有没有办法在Angular中自动更正它？还是服务器作业可以正确发送？

data: "{\"fiillingingo\": {\"refere\": null, \"secondary\": [], \"references\": [{\"referenc...}"

尝试JSON.parse（）后发生错误

core.js:15723 ERROR SyntaxError: Unexpected token u in JSON at position 639`

出于某种原因，当我从后端响应中复制并粘贴并将其手动设置为变量时，就很好了，但是当我直接从http调用中设置变量时，就是得到错误

Sercice.ts

  export interface Response{
  x: string;
  y: number;
}
@Injectable({
  providedIn: 'root'
})

export class DraftService {

  constructor(private http: HttpClient) { }

  getDraftData(ID: number):Observable<Response>{
    var url = `/services/****/drafts/${ID}/lob`;
    return this.http.get<Response>(url);
  }
}

componnent.ts

constructor(public data: DraftDocumentService) { }

  ngOnInit() {}

  loadClob(){
    this.data.getDraftData(this.ID).subscribe(response => {

      this.formatJSON =response.x;
      console.log(typeof this.formatJSON);

     },
      error =>{
        console.log('error');

      });
  }