access-control-allow-headers是一个HTTP响应头,它用于指定哪些HTTP头部可以作为跨域请求的一部分被浏览器发送。当前端JavaScript代码尝试通过XMLHttpRequest或Fetch API等向与当前页面不同源的服务器发送请求时,浏览器会首先检查服务器是否允许该请求。如果请求中包含的HTTP头部没有在服务器的access-control-allow-headers响...
Access to XMLHttpRequest at 'http://localhost:22222/api/Login/TestGet' from origin 'http://localhost:8080' has been blocked by CORS policy: Request header field authorization is not allowed by Access-Control-Allow-Headers in preflight response. 意思就是预请求响应头Access-Control-Allow-Headers中...
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: No 'Access-Control-Allow-Origin' header is present on the requested resource. 1. 通...
server{listen22222;server_name localhost;location/{add_header Access-Control-Allow-Origin'http://localhost:8080'always;if($request_method='OPTIONS'){add_header Access-Control-Allow-Headers'authorization';#为什么写在if里面而不是接着Access-Control-Allow-Origin往下写?因为这里只有预检请求才会检查return204...
add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization'; 重启nginx后,问题得到解决,但是又出现另一个跨域的报错: “Request header field x-token is not allowed by Access-Control-Allow-Headers in ...
add_header Access-Control-Allow-Headers 'token,Content-Type, x-requested-with, X-Custom-Header, Request-Ajax'; 会报错 Request header field token 如果没有 if ($request_method = 'OPTIONS') { return 200; } 1. 2. 3. 会报错:It does not have HTTP ok status ...
服务器默认是不被允许跨域的。给Nginx服务器配置`Access-Control-Allow-Origin *`后,表示服务器可以接受所有的请求源(Origin),即接受所有跨域的请求。 2. Access-Control-Allow-Headers 是为了防止出现以下错误: Request header field Content-Type is not allowed by Access-Control-Allow-Headers in preflight respo...
No 'Access-Control-Allow-Origin' header is present on the requested resource. 博友告诉我,报这个错是因为跨域访问了,需要修改配置。 我用的是Nginx解析服务,所以需要修改nginx.conf文件配置。 将下面代码插入到域名所在server配置下 代码语言:javascript ...
Access-Control-Request-Method: POST Access-Control-Request-Headers: Content-Type ... 省略了一些 服务器回应时,返回的头部信息如果不包含Access-Control-Allow-Headers: Content-Type则表示不接受非默认的的Content-Type。即出现以下错误: Request header field Content-Type is not allowed by Access-Control-Allow...
nginx add_header access control allow origin 拦截 nginx拦截器,这里需要使用两台Linux主机(一台充当防盗链服务器,一台充当盗链服务器),下表是它们所使用的操作系统以及IP地址。两台Linux主机所使用的操作系统以及IP地址主机名称操作系统IP地址防盗链服务器CentOS7.5