--- /dev/null
+var http = require('http')
+ , https = require('https')
+ , server = http.createServer(handler)
+ , port = +process.argv[2]
+ , prefix = process.argv[3]
+ , upstream = process.argv[4]
+ , calls = 0
+
+server.listen(port)
+
+function handler (req, res) {
+ if (req.url.indexOf(prefix) != 0)
+ throw new Error('request url [' + req.url + '] does not start with [' + prefix + ']')
+
+ var upstreamUrl = upstream + req.url.substring(prefix.length)
+ console.log(req.url + ' -> ' + upstreamUrl)
+ https.get(upstreamUrl, function (ures) {
+ ures.on('end', function () {
+ if (++calls == 2)
+ server.close()
+ })
+ ures.pipe(res)
+ })
+}