Quick and optimized poly-fill for transform that has fallbacks for IE 9 and WebKit based browsers.

PolyfillTransform.js

(function () {
    if (CSSStyleDeclaration.prototype.hasOwnProperty("transform")) {
    }
    else if (CSSStyleDeclaration.prototype.hasOwnProperty("msTransform")) {
        Object.defineProperties(CSSStyleDeclaration.prototype, {
            transform: {
                get: function get_transform() {
                    return this.msTransform;
                },
                set: function set_transform(transform) {
                    this.msTransform = transform;
                }
            }
        });
    }
    else {
        Object.defineProperties(CSSStyleDeclaration.prototype, {
            transform: {
                get: function get_transform() {
                    return this.webkitTransform;
                },
                set: function set_transform(transform) {
                    this.webkitTransform = transform;
                }
            }
        });
    }
})();