https://github.com/joyent/node/issues/2198

.gitignore

/bigfile

create-bigfile.sh

#!/bin/sh

dd if=/dev/urandom of=bigfile bs=1024 count=1024

index.js

fs = require('fs');
https = require('https');

var options = {
        key: fs.readFileSync('ssl-insecure.key'),
        cert: fs.readFileSync('ssl.crt')
};


// file must be more than 100k; I tested with 620k file
var bigFile = fs.readFileSync('bigfile');
var server = https.createServer(options, function (req, res) {
        res.writeHead(200, {
                'Content-Length': bigFile.length
        });

        var stream = fs.createReadStream('bigfile', {});
        req.emit('static', stream);
        stream.pipe(res);

        // the following code works well:
        //res.write(bigFile);
        //res.end();
});

server.listen(3000);

pummel.sh

#!/bin/bash

for i in {1..10}; do wget --no-check-certificate -O download.dat https://localhost:3000/; done

ssl-insecure.key

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

ssl.crt

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----