问题： 解决思路： （1）原UserServer 添加 @CrossOrigin （2）前端 Vue更换为网关地址 Gateway：
背景： 通过zuul做代理，反向代理到对应的controller中，发现之前正常工作的接口突然不能正常工作了，最终通过浏览器调试模式发现 出现了错误提示： has been blocked by CORS...policy: The 'Access-Control-Allow-Origin' header contains multiple values ' 原因是服务应用里面有一个CorsFilter类，
当需要跨域请求接口会出现 been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested...可以在代码里解决 , 也可以直接在nginx里解决 类似GOFLY部署在nginx下的代码 加上header头就可以了 add_header Access-Control-Allow-Origin...*; add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS'; server{ listen...Access-Control-Allow-Origin *; add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS...proxy_set_header Connection "upgrade"; proxy_set_header Origin ""; } }
按网上说的做， 配置 useCORS: true, Nginx添加请求头 add_header Access-Control-Allow-Origin...e=1573689600&v=beta&t=8TqbDk8iWCXXXXXXXXXXXXXXXXXXXXX’ has been blocked from origin ‘127.0.0.1:8000’...第二部： 然后在Nginx设置一下代理 location ^~ /third_image/ { add_header ‘Access-Control-Allow-Origin...add_header ‘Access-Control-Allow-Methods’ ‘GET, OPTIONS’ always; add_header...眼泪都要掉下来了，太感人了 更新啦更新啦~~~~ 推荐大家阅读我的最新原理解析篇呀：解决跨域问题 has been blocked by CORS policy 后续，原理解析篇 发布者：全栈程序员栈长
报错信息：Access to XMLHttpRequest at 'http://localhost:8081/' from origin 'null' has been blocked by CORS...policy: No 'Access-Control-Allow-Origin' header is present on the requested resource....主要是在 服务端返回的响应中 添加下面的头信息，不能直接写在 res.writeHead() 中 //看实际需求 一般只加第一个就行了 res.setHeader("Access-Control-Allow-Origin...http.createServer(function(req, res) { //主要时添加下面的几个配置就行 //直接写在 res.writeHead() 中没用 res.setHeader("Access-Control-Allow-Origin
XMLHttpRequest at 'http://localhost:8080/user/login1' from origin 'http://localhost:59033' has been blocked...by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. springboot...org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.cors.CorsConfiguration...; import org.springframework.web.cors.UrlBasedCorsConfigurationSource; import org.springframework.web.filter.CorsFilter
Access to XMLHttpRequest at 'http://xx.xx.xx.xx/getUser' from origin 'http://ergouzi.fun' has been blocked...by CORS policy: The 'Access-Control-Allow-Origin' header contains multiple values 'http://ergouzi.fun...,but only one is allowed” // response.setHeader("Access-Control-Allow-Origin", "*");...同时在 nginx 中也作了相关配置： add_header 'Access-Control-Allow-Origin' '*'; add_header 'Access-Control-Allow-Methods...' header is present on the requested resource.
|webp)$"> SetEnvIf Origin ":" IS_CORS Header set Access-Control-Allow-Origin..."http://服务器ip" env=IS_CORS 然后就解决了这个跨域的问题 这个还有很多其他的解决办法...，例如在php中调用跨域的内容时， 在php中加入 header("Access-Control-Allow-Origin：http://服务器ip"); 其他的就先不说了，因为没有用到
XMLHttpRequest at 'http://localhost:8080/api/user/login' from origin 'http://localhost:808 2.开始以为是跨域问题 已经在入口文件增加header...('Access-Control-Allow-Origin: *');//支持全域名访问 但是仍然不行 3.原因是前端使用了框架-axios 完整的配置 header('Pragma: no-cache...', false); header('Access-Control-Allow-Origin: *');//支持全域名访问 header('Access-Control-Allow-Methods...:POST,GET,OPTIONS,DELETE');//支持的http动作 header('Access-Control-Allow-Headers:x-requested-with,content-type
Access to XMLHttpRequest at ‘http://www.z…n.com/api/login’ from origin ‘http://z…n.com’ has been blocked...by CORS policy: The ‘Access-Control-Allow-Origin’ header contains multiple values ‘*, http://z…n.com...意思是： 已被CORS策略阻止：“Access Control Allow Origin”标头包含多个值* 但只有一个是允许的。...nginx具体配置： 相关阅读 · 推荐 The ‘Access-Control-Allow-Origin’ header contains multiple values’*, *’, but only...but only one is allowed（重复处理跨域请求） 以上就是关于“ The ‘Access-Control-Allow-Origin‘ header contains multiple
at 'http://127.0.0.1:9002/business/admin/chapter/list' from origin 'http://localhost:8080' has been blocked...by CORS policy: No 'Access-Control-Allow-Origin' header 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。 前后端分离必然有跨域问题。...com.lsu.server.config; import org.springframework.context.annotation.Configuration; import org.springframework.web.cors.CorsConfiguration
by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin...by CORS policy: Response to preflight request doesn’t pass access control check: It does not have HTTP...by CORS policy: Request header field authorization is not allowed by Access-Control-Allow-Headers in...by CORS policy: Method PUT is not allowed by Access-Control-Allow-Methods in preflight response....by CORS policy: The ‘Access-Control-Allow-Origin’ header contains multiple values ‘*, http://localhost
by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin...by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP...by CORS policy: Request header field authorization is not allowed by Access-Control-Allow-Headers in...by CORS policy: Method PUT is not allowed by Access-Control-Allow-Methods in preflight response....by CORS policy: The 'Access-Control-Allow-Origin' header contains multiple values '*, http://localhost
at 'http://localhost:8089/appcicd/appinfo/getappinfos' from origin 'http://localhost:8000' has been blocked...by CORS policy: The 'Access-Control-Allow-Origin' header has a value 'http://localhost:8089/' that is...at 'http://localhost:8089/appcicd/appinfo/getappinfos' from origin 'http://localhost:8000' has been blocked...by CORS policy: The value of the 'Access-Control-Allow-Origin' header in the response must not be the...has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested
by CORS policy: Response to preflight request doesn't pass access control check: The value of the 'Access-Control-Allow-Origin...Koa解决方法示例 // ctx.set('Access-Control-Allow-Origin', '*'); ctx.set('Access-Control-Allow-Origin', ctx.headers...by CORS policy: Response to preflight request doesn't pass access control check: The value of the 'Access-Control-Allow-Credentials...by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in...by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed
前台在访问不同ip的nginx服务器时报：No ‘Access-Control-Allow-Origin’ header is present on the requested resource 原因.../101.43.39.125/HexoFiles/win11-mt/20210814144827.pdf' from origin 'https://www.zywvvd.com' has been blocked...by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource....CORS disabled....配置文件中的路由中添加以下代码： location / { add_header Access-Control-Allow-Origin *; add_header Access-Control-Allow-Methods
主要是由两个 Header 来做相对的存取控制：请求当中的 Origin 和响应中的 Access-Control-Allow-Origin。...by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in...' from origin 'http://localhost:3000' 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...by CORS policy: The value of the 'Access-Control-Allow-Origin' header in the response must not be the
XMLHttpRequest at 'http://localhost:8081/Ass/login' * 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...:8081/list' * from origin 'http://localhost:8080' has been blocked by CORS policy: * No 'Access-Control-Allow-Origin...' header is present on the requested resource. */ @Configuration public class CorsConfig { @Bean
在搭建完成前后端框架后，进行接口测试时发现了一个前后端分离普遍存在的问题跨域（CORS）请求问题。因此就有了这篇文章如何启用ASP.NET WebApi 中的 CORS 支持。...if (Request.Headers.AllKeys.Contains("Origin") && Request.HttpMethod == "OPTIONS") {...XMLHttpRequest at 'http://localhost:1204/api/Login/ShopKeeperLogin' from origin 'http://localhost:8081' 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.
Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response...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义的跨域字段。如果允许，则继续实际的POST／GET正常请求，否则，返回标题所示错误。...filter）中设置响应头包含该字段 HttpServletResponse rep = (HttpServletResponse) servletResponse; rep.setHeader("Access-Control-Allow-Origin...Access-Control-Allow-Methods","POST, GET, PUT, OPTIONS, DELETE, PATCH"); // Access-Control-Max-Age 用于 CORS
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