http:///index.html 调用 http:///server.php (子域名不同:abc/def,跨域) 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。
解决“access to xmlhttprequest at” 错误的方法 后端配置 CORS:最根本的解决方案是让后端服务器配置 CORS 策略,以允许来自特定源或所有源的请求。这通常涉及在服务器的响应头中添加 Access-Control-Allow-Origin 等相关字段。 前端使用代理:在开发阶段,可以通过在前端项目中配置代理来解决跨域问题。Vue CLI 提供了...
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 loginEvent:function(...
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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...
AI代码解释 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 present on the requested resource. 这个时候,是遇到了跨域的问题; 由于接口跨域问题,因此不能直接通过ajax请求访问 ...
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...
比如接口请求不到:Uncaught (in promise) Error: Request failed with status code 404或者http://localhost:8081/list 404 (Not Found), 跨域问题:Access to XMLHttpRequest at 'loaclhost:3000/list' from origin 'http://localhost:8081' has been blocked by CORS policy: Cross origin requests are only ...
1.前端浏览器报错如下:AccesstoXMLHttpRequestathttp://xxx.xxxfromorigin'http://localhost:8000'hasbeenblockedbyCORSpolicy:Responsetopreflightrequestdoesn'tpassaccesscontrolcheck:Redirectisnotallowedforapreflightrequest.2.axios封装
phone=19939306484&password=111' from origin 'http://localhost:8080' has been blocked by CORS policy: The value of the 'Access-Contr 报错如上图!!! 解决办法首先打开 config -> index.js ,粘贴 如下图代码,'https://www.baidu.com'换成要访问的的api域名,注意只要域名就够了,不是整个api地址。代...