Crypt URI with JavaScript

cryptURI.js

(function() {
    String.prototype.asciiEncode = function() {
        var i, result = [];
        for (i = 0; i < this.length; i++) {
            result.push("%", this.charCodeAt(i).toString(16));
        }

        return result.join('');
    }
    
    String.prototype.cryptUri = function() {
        return this.replace(/((?![\w]+:\/\/)[\w\.-]+)/g, function(match) {
            return match.asciiEncode();
        });
    };
})();

"https://e7d.io/".cryptUri(); // https://%65%37%64%2e%69%6f/