关于 webapi ajax进度条信息设置

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1、Web.config 设置跨域

<httpProtocol>
  <customHeaders>
    <add name="Access-Control-Allow-Origin" value="*" />
    <add name="Access-Control-Allow-Headers" value="Content-Type" />
    <add name="Access-Control-Allow-Methods" value="GET, POST, PUT, DELETE,OPTIONS" />
  </customHeaders>
</httpProtocol>

2、Global.asax中配置OPTIONS

protected void Application_BeginRequest()
{
    if (Request.Headers.AllKeys.Contains("Origin") && Request.HttpMethod == "OPTIONS")
    {
        Response.Flush();
    }
}

关于 webapi ajax进度条信息设置

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原文地址：http://www.cnblogs.com/zzsdream/p/5790656.html