尝试使用从另一个文件导入函数的 javascript 文件启动 html 页面时出现此错误:
Access to script at 'file:///C:/Users/bla/Desktop/stuff/practice/jsPractice/funcexecute.js'
from origin 'null' has been blocked by CORS policy:
Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https.
Failed to load resource: net::ERR_FAILED
这是html代码:
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8'>
<meta http-equiv='X-UA-Compatible' content='IE=edge'>
<title>Page Title</title>
<meta name='viewport' content='width=device-width, initial-scale=1'>
</head>
<body>
<script type = 'module' src='funcexecute.js'></script>
</body>
</html>
从 html 调用的 js 文件:(funcexecute.js)
import sumup from '/funcfile.js';
console.log(sumup(1,2));
导入模块:
(funcfile.js)
function sumup(num1, num2){
return num1+num2;
}
export default sumup;
我怎样才能解决这个问题？ (我使用vscode)
最佳答案
不使用服务器就不能将脚本文件用作模块。
Take a look here
以下是一些选项
http-server .)总之不能用
type="module"带文件协议(protocol)
关于javascript - "access to script from origin ' null ' has been blocked by CORS policy"尝试使用导入的 js 函数启动 html 页面时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59912641/