否“访问控制允许来源”标头在办理Ionic2 HTTP POST请求

Question

这是我的全code ...

this.http.post(link, data, { headers: headers }) 
    .map(res => res.json()) 
    .subscribe(data => { 
     this.data.response = data._body; 
    }, error => { 
     console.log("Oooops!"); 
    }); 

运行代码后，这个错误存在：

"XMLHttpRequest cannot load 
https://script.google.com/macros/s/AKfycbzdHHKBmLWJYZtFGlJGOrUwlPIWXor1geEOgcSgvhs/dev.  
No 'Access-Control-Allow-Origin' header is present on the requested resource. 
Origin 'http://localhost:8100' is therefore not allowed access. 
The response had HTTP status code 401." 

我搜索关于CORS ...但我不能让我的头周围...

任何帮助将不胜感激。

Answer 1

从谷歌浏览器下载Allow-Control-Allow-Origin应用程序。在安装的应用程序中启用CORS并执行您的代码。这将暂时允许您的浏览器中的CORS。

Answer 2

我有同样的问题，但几个小时后，搜索我的问题消失了。在ionic.config.json>/mobile从path - /mobile/api/authentication：

ionic.config.json

{ 
    "name": "KickStarter", 
    "app_id": "85ff0666", 
    "v2": true, 
    "typescript": true, 
    "proxies": [ 
    { 
     "path": "/mobile", 
     "proxyUrl": "http://xxxxx:port/mobile" 
    } 
    ] 
} 

你应该使用ionic g provider [name-of-provider] --ts它会产生供应商提出请求如下：

export class AuthProvider { 
    data: any = null; 

    constructor(public http: Http) { } 

    load() { 
     if (this.data) { 
      // already loaded data 
      return Promise.resolve(this.data); 
     } 

     // don't have the data yet 
     return new Promise(resolve => { 
      // We're using Angular Http provider to request the data, 
      // then on the response it'll map the JSON data to a parsed JS object. 
      // Next we process the data and resolve the promise wi new data. 
      this.http.get('/mobile/api/authentication') 
       .map(res => res.json()) 
       .subscribe(data => { 
        // we've got back the raw data, now generate the core schedule data 
        // and save the data for later reference 
        resolve(this.data); 
       }); 
     }); 
    } 
} 

只记得。