Challenge 12 passes without POST qualifier

[kwhms]

Challenge 12 stipulates that the http server should only handle POST requests but I was able to successfully pass the verification test without any POST logic checking in my solution:

var http = require('http');
var map = require('through2-map');

var port = process.argv[2];

var server = http.createServer( function(request, response){

    request.pipe(map(function(currValue){
        return currValue.toString().toUpperCase()
    })).pipe(response);

});

server.listen(port);

Verification testing should check that GET requests do not receive the modified string.