@Override
    public void connectFailed(URI uri, SocketAddress address, IOException failure) {
        defaultProxySelector.connectFailed(uri, address, failure);
    }
{@link ProxySelector} that ignore system default proxies for concrete host.
<p>
It is important to <a href="https://github.com/danikula/AndroidVideoCache/issues/28">ignore system proxy</a> for localhost connection.
VideoCache/src/main/java/com/yc/videocache/IgnoreHostProxySelector.java