我一直在网站上运行新闻api,并通过将文件拖到网络浏览器中在计算机上进行测试,该URL会显示为file:///C:
。然后,我将所有更改上传到我的GitHub存储库,并在Github页面https://name.github.io/repository/
上运行。
很长一段时间,一切正常,但是最终,API停止工作,并且在控制台Access to fetch at 'https://newsapi.org/v2/everything?xx' from origin 'https://name.github.io' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
中出现了错误
我尝试将mode: 'no-cors'
添加到提取中,但是不适用于return response.json();
我的功能如下:
const url = 'https://newsapi.org/v2/everything?' +
'qInTitle=""&' +
`from=` +
'language=en&' +
'apiKey=';
const req = new Request(url);
fetch(req).then(function(response) {
return response.json();
}).then(function(news) {
newsLoop(news);
});
当我在本地file:///C:
上运行该API时,它也停止工作,它显示的错误与Github页面Access to fetch at 'https://newsapi.org/v2/everything?xx' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
上的错误类似
我该如何处理它,以便API在Github页面上以及当我在PC上本地运行时显示信息?
答案 0 :(得分:4)
您需要CORS代理
const proxyUrl = "https://cors-anywhere.herokuapp.com/"
const qInTitle = "";
const from = "";
const apiKey = "";
const url = `${proxyUrl}https://newsapi.org/v2/everything?qInTitle=${qInTitle}&from=${from}language=en&apiKey=${apiKey}`;
const request = new Request(url);
fetch(request)
.then(response => response.json())
.then((news) => {
console.log(news);
})
.catch(error => {
console.log(error);
});
答案 1 :(得分:0)
这是https://newsapi.org需要配置的内容。 这是他们的网站,并与CORS交流如何允许以及哪些网站嵌入其内容。而且大多数现代浏览器都遵循这些限制。
最好的选择是与他们的支持人员联系,或者查看帐户设置,也许您需要使用一些令牌或在某个位置列出您的网站。
除了联系https://newsapi.org并要求他们更改许可/ CORS之外,我想您可以做一个代理服务器来复制其内容,但这可能会破坏使用条款。