vue.js - Vue js 的 CORS 问题

Question

我用的是vuejs，地址http://localhost:8000 .

调用 api 时，出现 CORS 错误。 sid 未成功请求 header
要求

Domain from origin http://localhost:8080 has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

let headers = {
          'Content-Type': 'application/json',
          'Access-Control-Allow-Origin': true,
};

Answer 1

您需要使用代理配置创建一个“vue.config.js”。

例子 :

 module.exports = {
  devServer: {
    proxy: {
      '/api': {
        target: 'http://localhost:8080',
        ws: true,
        changeOrigin: true
      }
    }
  }
}