run 'node testproxy.js proxy' on your VPS.
run 'node testproxy.js VPS_IP' on your local PC.
set Proxy IP/port in web browser to 127.0.0.1/8893 on your local PC.
run 'node testproxy.js standalone' on your server if you only need a normal proxy instead of a double-steps-proxy.
Basic idea and code comes from this article. Thanks to the poster and the original author. http://cnodejs.org/topic/4f16442ccae1f4aa27001101
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