Apply some delay on Http Requests

gistfile1.js

// enabled when $rootScope.configHttpDelay == true

(function () {
    "use strict";

    angular.module("app")
        .config(function ($provide) {
        function decorator($delegate) {
            var proxy = function (method, url, data, callback, headers) {
                var interceptor = function () {
                    var _this = this,
                        _arguments = arguments;

                    var obj1 = angular.element(document.querySelector('.ng-scope')).data();
                    var delay = obj1.$scope.$root.configHttpDelay;
                    if (delay) {
                        var delayMs = 700;
                        setTimeout(function () {
                            callback.apply(_this, _arguments);
                        }, delayMs);
                    }
                    else {
                        callback.apply(_this, _arguments);
                    }
                };
                return $delegate.call(this, method, url, data, interceptor, headers);
            };
            for (var key in $delegate) {
                proxy[key] = $delegate[key];
            }
            return proxy;
        }

        $provide.decorator('$httpBackend', decorator);
    })

})();