Nginx 跨域设置

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web应用通常会碰到跨域的问题，特别是在将字体文件放在另一个域名下(cdn缓存)的时候会出现无法访问的问题，浏览器会报如下错误警告：

Font from origin 'http://cdn.xxxx.com' has been blocked from loading by Cross-Origin Resource Sharing policy:
No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://www.xxxx.com'
is therefore not allowed access.

意思是说 http://www.xxxx.com 不被 http://cdn.xxxx.com 服务跨域允许,需要在 nginx 的 cdn.xxxx.com服务的配置中加上跨域允许的配置：

         add_header Access-Control-Allow-Origin http://www.xxxx.com;
add_header Access-Control-Allow-Headers Origin,X-Requested-With,Content-Type,Accept;
add_header Access-Control-Allow-Methods POST,GET;
add_header Access-Control-Allow-Credentials true;

重启nginx就能解决这个问题。

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