Ionic2 http post 请求中不存在“Access-Control-Allow-Origin"标头 [英] No 'Access-Control-Allow-Origin' header is present upon Ionic2 http post request
本文介绍了Ionic2 http post 请求中不存在“Access-Control-Allow-Origin"标头的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是我的完整代码...
this.http.post(link, data, { headers: headers })
.map(res => res.json())
.subscribe(data => {
this.data.response = data._body;
}, error => {
console.log("Oooops!");
});
运行代码后出现此错误:
after running the code this error is present:
"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."
我已经搜索了 CORS...但我无法理解它...
I've searched about CORS... but I can't get my head around it...
任何帮助将不胜感激.
推荐答案
我有同样的问题,但经过几个小时的搜索,我的问题消失了.
i have same issue but after some hours to search my problem gone.
ionic.config.json
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
它会生成提供者来发出这样的请求:
you should use ionic g provider [name-of-provider] --ts
it will generate provider to make a request like this:
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);
});
});
}
}
只要记住:/mobile/api/authentication
-> /mobile
来自 path
in ionic.config.json代码>.
just remember: /mobile/api/authentication
-> /mobile
from path
in ionic.config.json
.
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