small problem fix for letv live
small problem fix for letv live

之前有美国的用户反映没法看乐视直播，我测试了一下发现crossdomain.xml在海外地区会出现404，但使用国内的代理却没有问题。估计是跟之前的腾讯视频的那个问题相似，也是DNS配置出现故障了。因此暂时使用国内代理缓解一下这个问题。
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