跨域请求

报错：Access to XMLHttpRequest at 'http://197.7.50.83:27/WebServices/other/PlaneHandlerJ.ashx' from origin 'http://197.7.50.83:8080' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.

修改目标配置文件：　Web.config

<customHeaders>
<add name="Access-Control-Allow-Methods" value="OPTIONS,POST,GET"/>
<add name="Access-Control-Allow-Headers" value="Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With"/>
<add name="Access-Control-Allow-Origin" value="*" />
</customHeaders>