由网友(七彩云朵.)分享简介：我遇到了麻烦代理自动配置（PAC）在IE选项使用工作按预期净的WebRequest。I'm having trouble getting Proxy Automatic Configuration (PAC) in IE options to work as expected using .Net WebReques...

我遇到了麻烦代理自动配置（PAC）在IE选项使用工作按预期净的WebRequest。

I'm having trouble getting Proxy Automatic Configuration (PAC) in IE options to work as expected using .Net WebRequest.

根据这篇文章：http://msdn.microsoft.com/en-gb/magazine/cc300743.aspx#S1 该系统代理默认情况下应设置为每个WebRequest的。

According to this article: http://msdn.microsoft.com/en-gb/magazine/cc300743.aspx#S1 The system proxy should be set by default with to each WebRequest.

这是怎么的proxy.js PAC文件是这样的：

That's how the proxy.js pac file looks like:

function FindProxyForURL(url, host)
{
  return "PROXY ProxyServerName:3118; DIRECT;";
}

我也看了看这个帖子：How我应该设置默认代理使用默认凭据？

这表明添加此在App.config：

Which suggests to add this in the app.config:

<system.net>
  <defaultProxy useDefaultCredentials="true" />
</system.net>

添加这并没有帮助。

Adding this did not help.

我创建了一个小型控制台应用程序只是在这里测试了这一点。它是：

I created a small console application just to test this out.. here it is:

static void Main(string[] args)
{
    HttpWebRequest request = null;
    try
    {               
        String resolvedAddress = WebRequest.DefaultWebProxy.GetProxy(new Uri("http://www.google.com")).ToString();
        Console.WriteLine("Proxy for address is: " + resolvedAddress);

        Uri m_URLToTest = new Uri("http://www.google.com");
        request = WebRequest.Create(m_URLToTest) as HttpWebRequest;
        request.Method = "GET";
        request.KeepAlive = false;
        request.Timeout = 5000;
        request.Proxy = WebRequest.DefaultWebProxy;
        WebResponse response = request.GetResponse();
        StreamReader reader = new StreamReader(response.GetResponseStream());
        string message = reader.ReadToEnd();
    }
    catch (Exception ex)
    {
        Console.Write("Exception");
    }

}

输出： 代理服务器的地址是 http://www.google.com

The output: Proxy for address is http://www.google.com

而不是代理服务器的地址是ProxyServerName：3118

instead of Proxy for address is ProxyServerName:3118

它仅使用自动配置脚本时发生......

It happens only when using auto configuration script...

我错过了什么？请帮帮忙！

Did I miss anything? Please help!

推荐答案

找到了解决办法！

这是非常重要的PAC文件的MIME类型是：内容类型：应用程序/ x-NS-代理自动配置]

It is really important that the mime type of the PAC file would be: [Content-type: application/x-ns-proxy-autoconfig]

其他MIME类型可能无法正常工作。

Other mime types might not work.

请确保使用fiddler2（含禁用缓存）的MIME类型是合适的。 有些配置可能显示的Content-Type：text / plain的是坏的。

Make sure using fiddler2 (with cache disabled) that the mime type is appropriate. Some configurations might show Content-Type: text/plain which is bad.