function createDedupeSlashes() {
    return function dedupeSlashes(req, res, next) {
        req.url = req.url.replace(/(\/)\/+/g, '$1');
        return next();
    };
}
This plugin deduplicates extra slashes found in the URL. This can help with
malformed URLs that might otherwise get misrouted.

@public
@function dedupeSlashes
@returns {Function} Handler
@example
server.pre(restify.plugins.pre.dedupeSlashes());
server.get('/hello/:one', function(req, res, next) {
    res.send(200);
    return next();
});

// the server will now convert requests to /hello//jake => /hello/jake