在nginx环境下,为了支持XMLHttpRequest,通常需要处理跨域资源共享(CORS)问题。如果前端JavaScript代码试图通过XMLHttpRequest请求一个不同源(域名、协议或端口不同)的资源,浏览器会出于安全考虑阻止这种请求,除非服务器明确允许跨域请求。 要在nginx中配置CORS,可以在nginx的配置文件(通常是nginx.conf或包含的文件)中添加相...
一、问题 当我实现前后端分离的时候,遇到了这个问题: Access to XMLHttpRequest at ‘ http://localhost:8080/xxx’ from origin ‘http://localhost:63342’ has been blocked by CORS policy: No ‘Access-Con…
Access to XMLHttpRequest at 'http://localhost:22222/api/Login/TestGet' from origin 'http://localhost:8080' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status. 通过报错信息提示可以得知,是跨域浏览器默认行为的预请...
在上面的示例代码中,我们通过设置Access-Control-Allow-Methods来允许OPTIONS请求。 使用代理服务器:如果你无法直接修改ThinkPHP应用程序的代码,或者希望更灵活地处理跨域问题,可以考虑使用代理服务器。代理服务器可以拦截所有HTTP请求,并根据需要进行CORS头部的设置。例如,你可以使用Nginx或Apache等Web服务器作为代理服务器。
1、前端浏览器报错如下: Access to XMLHttpRequest at http://xxx.xxx from origin 'http://localhost:8000' has been blocked by CORS policy: Response to prefl
https://www.jianshu.com/p/1080014a234f(跨域配置) 问题现象 Access to XMLHttpRequest at 'https://api.gstianfu.com/public/fund/announce_detail?aid=654247428725' from origin 'https://mobile.igesafe.com' has been blocked by CORS policy: The 'Access-Control-Allow-Origin' header contains multiple...
背景:迁移项目上传图片到阿里云的oss存储报跨域错误 报错信息一:Access to XMLHttpRequest at 'xxxxx' from origin 'xxxxxxxxx' 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...
Access to XMLHttpRequest at'http://127.0.0.1:9002/business/admin/chapter/list'from origin'http://localhost:8080'has been blocked byCORSpolicy:Noheader is present on the requested resource. CORS 跨站点资源分享,属于跨域问题,同个 IP 的不同端口间的访问也属于跨域。
Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response 预运行响应中的访问控制允许头不允许请求头字段内容类型,也就是我们的请求head中包含了不允许的字段内容。 原因: 包含自定义header字段的跨域请求,浏览器会先向服务器发送OPTIONS请求,探测该服务器是否允许自定...
Access to XMLHttpRequest at 'http://a.com/api' from origin 'http://b.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request. 生产上多次出现上面这个奇怪的跨域问题,但神奇的是强刷新后或者使用无...