代理hostname为ip地址的https请求失败

将手机模拟器的代理设置为anyproxy，结果请求全部失败。
看了下源码，`httpsServerMgr.getSharedHttpsServer`这个函数如果传入的是ip地址那么返回的是一个目标服务器的ip地址和一个本地的端口，我自己把ip改成本地的发现可以正常工作了。

#### Which platform are you running AnyProxy

linux manjaro
#### The version of the AnyProxy

最新的master

#### Your expected behavior of AnyProxy

#### The actual behavior of AnyProxy

#### The log of the error

Start by reading httpsServerMgr.getSharedHttpsServer and reproduce the HTTPS proxy failure with AnyProxy on Linux Manjaro using an IP-address hostname. Compare its returned target address and local port with the behavior when the address is local. Done means HTTPS requests through the emulator's AnyProxy proxy succeed when the hostname is an IP address.

Written by the indexing model from the issue text.