在Vue项目中遇到跨域请求问题,可以通过配置代理服务器来解决。 在Vue项目中,当你尝试从前端访问后端API时,如果前后端部署在不同的域名或端口上,浏览器会基于同源策略阻止这种跨域请求,从而抛出“Access to XMLHttpRequest at 'URL' from origin 'origin' has been blocked by CORS policy”的错误。
Access to XMLHttpRequest at 'http://localhost:8080/FactoryERP/Selectout' from origin 'http://localhost:7070' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. 产生的原因 出现这条信息就是说明出现express跨域问题 。 这表明我们的请求已...
首先解决跨域问题需要修改vue.config.js文件 在vue.config.js中添加 devServer: { proxy: { '/api': { target: 'http://127.0.0.1:3001/', //接口 changeOrigin: true,//允许跨域 ws: true, pathRewrite: { '^/api': '' } } } } 在使用接口的时候使用刚刚在vue.config.js中定义的 '/api' 代替...
http://www.intmote.com/test.json 我现在要调用 在调用接口数据的时候的时候 会出现这样的报错 代码语言:javascript 代码运行次数:0 Access to XMLHttpRequest at'http://www.intmote.com/test.json'from origin'http://localhost:8080'has been blocked byCORSpolicy:No'Access-Control-Allow-Origin'header is...
1.前端浏览器报错如下:AccesstoXMLHttpRequestathttp://xxx.xxxfromorigin'http://localhost:8000'hasbeenblockedbyCORSpolicy:Responsetopreflightrequestdoesn'tpassaccesscontrolcheck:Redirectisnotallowedforapreflightrequest.2.axios封装
XMLHttpRequest或Fetch API报错:当使用XMLHttpRequest或Fetch API发起跨域请求时,浏览器会报错,例如: Access to XMLHttpRequest at 'http://www.example.com/api' from origin 'http://www.yourdomain.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the reque...
http://:8080/index.html 调用 http://:8081/server.php (端口不同:8080/8081,跨域) http:///index.html 调用 https:///server.php (协议不同:http/https,跨域) 请注意:localhost和127.0.0.1虽然都指向本机,但也属于跨域。 知道了跨域的概念之后我们如何解决他呢?
VUE跨域问题Access to XMLHttpRequest at ‘http://localhost,问题描述VUE发送请求的时候不能请求到正确数据,控制台如下AccesstoXMLHttpRequestat'http://localhost:8000/equip_fault_report/all'fromorigin'http://localhost:8080'hasbeenblockedbyCORSpolicy:No'Access-
Access to XMLHttpRequest at ‘http:// localhost:8087/api/user/list’ from origin ‘http:// localhost:8081’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. 2. 什么是跨域 ...
简介:vue3.0解决跨域问题Access to XMLHttpRequest at ___has been blocked by CORS policy: No ‘Access-Control-Allow 1,vue3.0根目录下创建vue.config.js文件 2,将代码块写入其中 module.exports = {devServer: {proxy: {'/api': {target: 'https://blog.csdn.net/', //接口域名(你请求的第三方接口...