调用 rxjs 的 ajax 报 'CORS is not supported by your browser'
调用 rxjs 中的 ajax 方法,结果返回以下错误信息:
throw new Error('CORS is not supported by your browser');
^
Error: CORS is not supported by your browser
at getCORSRequest (./node_modules/rxjs/internal/observable/dom/AjaxObservable.js:28:1)
at Object.createXHR (./node_modules/rxjs/internal/observable/dom/AjaxObservable.js:94:1)
at AjaxSubscriber.module.exports.__webpack_modules__.2939.AjaxSubscriber.send (./node_modules/rxjs/internal/observable/dom/AjaxObservable.js:167:1)
at new AjaxSubscriber (./node_modules/rxjs/internal/observable/dom/AjaxObservable.js:149:1)
at AjaxObservable.module.exports.__webpack_modules__.2939.AjaxObservable._subscribe (./node_modules/rxjs/internal/observable/dom/AjaxObservable.js:117:1)
at AjaxObservable.Observable._trySubscribe (./node_modules/rxjs/internal/Observable.js:44:1)
at AjaxObservable.Observable.subscribe (./node_modules/rxjs/internal/Observable.js:30:1)
at MapOperator.module.exports.__webpack_modules__.8230.MapOperator.call (./node_modules/rxjs/internal/operators/map.js:32:1)
at Observable.subscribe (./node_modules/rxjs/internal/Observable.js:25:1)
问题的根源可不像看上去的那样明了,并非你去查 api 手册加上跟 cors 相关的配置就可以解决的。这个错误跟这个 issue 有关,虽然其状态是 closed
但其实一直并未修复,起码在当前的 rxjs 6 上依旧有这样的问题。
解决之道在上述 issue 的评论中已经给出:
xmlhttprequest
(对于 TypeScript
则是 xmlhttprequest-ts
)function simpleAsync() {
ajax({
url: 'https://blog.dteam.top/posts.html',
// 记得 import {XMLHttpRequest} from 'xmlhttprequest-ts';
createXHR: () => new XMLHttpRequest(),
})
.pipe(
...
)
.subscribe(res => {
...
});
其余则按需自行查阅文档进行配置吧,😄
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