Remove usage of synchronous ajax requests (#12546)

* Do not use sync ajax requests

* adds deprecation comments

* convert some methods to be fully async

* adds minimum waittime after page load in ui tests

* improve wait times

23 files changed, 199 insertions, 185 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2df4ae011a..f6f2aabe7a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ The Product Changelog at **[matomo.org/changelog](https://matomo.org/changelog)*
 
 ### Breaking Changes
 `piwik` font is deprecated and will be removed in Matomo 4.0. Please use new `matomo` font instead
+Sending synchronous requests using ajaxHelper is now deprecated. All requests will be send async as of Matomo 4.0
 
 ### New APIs
 * A new JavaScript tracker method `resetUserId` has been added to allow clearing user and visitor id.
diff --git a/plugins/Annotations/javascripts/annotations.js b/plugins/Annotations/javascripts/annotations.js
index b6d08e9856..0556b6027f 100755
--- a/plugins/Annotations/javascripts/annotations.js
+++ b/plugins/Annotations/javascripts/annotations.js
@@ -28,7 +28,7 @@
             ajaxRequest.addParams(ajaxParams, 'get');
             ajaxRequest.setCallback(callback);
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         },
 
         // calls Annotations.addAnnotation
@@ -49,7 +49,7 @@
             ajaxRequest.withTokenInUrl();
             ajaxRequest.setCallback(callback);
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         },
 
         // calls Annotations.saveAnnotation
@@ -72,7 +72,7 @@
             ajaxRequest.withTokenInUrl();
             ajaxRequest.setCallback(callback);
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         },
 
         // calls Annotations.deleteAnnotation
@@ -92,7 +92,7 @@
             ajaxRequest.withTokenInUrl();
             ajaxRequest.setCallback(callback);
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         },
 
         // calls Annotations.getEvolutionIcons
@@ -114,7 +114,7 @@
             ajaxRequest.addParams(ajaxParams, 'get');
             ajaxRequest.setFormat('html');
             ajaxRequest.setCallback(callback);
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         }
     };
 
diff --git a/plugins/CoreHome/javascripts/corehome.js b/plugins/CoreHome/javascripts/corehome.js
index b50296bfaa..c84c80959e 100755
--- a/plugins/CoreHome/javascripts/corehome.js
+++ b/plugins/CoreHome/javascripts/corehome.js
@@ -58,7 +58,7 @@
                 });
             });
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
 
             return false;
         });
diff --git a/plugins/CoreHome/javascripts/dataTable.js b/plugins/CoreHome/javascripts/dataTable.js
index ccc6bf00a1..a5f3906a0b 100644
--- a/plugins/CoreHome/javascripts/dataTable.js
+++ b/plugins/CoreHome/javascripts/dataTable.js
@@ -275,7 +275,7 @@ $.extend(DataTable.prototype, UIControl.prototype, {
         });
         ajaxRequest.setFormat('html');
 
-        ajaxRequest.send(false);
+        ajaxRequest.send();
     },
 
     // Function called when the AJAX request is successful
@@ -1361,7 +1361,7 @@ $.extend(DataTable.prototype, UIControl.prototype, {
             }, 'post');
             ajaxRequest.setCallback(function () {});
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         }
     },
 
diff --git a/plugins/CoreHome/javascripts/dataTable_rowactions.js b/plugins/CoreHome/javascripts/dataTable_rowactions.js
index d357a5e594..b937979cdf 100644
--- a/plugins/CoreHome/javascripts/dataTable_rowactions.js
+++ b/plugins/CoreHome/javascripts/dataTable_rowactions.js
@@ -426,5 +426,5 @@ DataTable_RowActions_RowEvolution.prototype.showRowEvolution = function (apiMeth
     ajaxRequest.addParams(requestParams, 'get');
     ajaxRequest.setCallback(callback);
     ajaxRequest.setFormat('html');
-    ajaxRequest.send(false);
+    ajaxRequest.send();
 };
diff --git a/plugins/CoreHome/javascripts/popover.js b/plugins/CoreHome/javascripts/popover.js
index 5bf316991c..61308b22cf 100644
--- a/plugins/CoreHome/javascripts/popover.js
+++ b/plugins/CoreHome/javascripts/popover.js
@@ -295,7 +295,7 @@ var Piwik_Popover = (function () {
             ajaxRequest.addParams(piwikHelper.getArrayFromQueryString(url), 'get');
             ajaxRequest.setCallback(callback);
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         }
     };
 })();
diff --git a/plugins/DBStats/templates/index.twig b/plugins/DBStats/templates/index.twig
index a3f9e80897..fde84f2bfa 100755
--- a/plugins/DBStats/templates/index.twig
+++ b/plugins/DBStats/templates/index.twig
@@ -89,7 +89,7 @@
                     piwikHelper.compileAngularComponents(self);
                 });
                 ajaxRequest.setFormat('html');
-                ajaxRequest.send(false);
+                ajaxRequest.send();
             });
         });
     })(jQuery);
diff --git a/plugins/Dashboard/javascripts/dashboard.js b/plugins/Dashboard/javascripts/dashboard.js
index 22e07e38e0..86faf58b52 100644
--- a/plugins/Dashboard/javascripts/dashboard.js
+++ b/plugins/Dashboard/javascripts/dashboard.js
@@ -37,7 +37,7 @@ function createDashboard() {
                 });
             }
         );
-        ajaxRequest.send(true);
+        ajaxRequest.send();
     }});
 }
 
@@ -120,7 +120,7 @@ function copyDashboardToUser() {
             });
         }
     );
-    ajaxRequest.send(true);
+    ajaxRequest.send();
 
     piwikHelper.modalConfirm(makeSelectorLastId('copyDashboardToUserConfirm'), {
         yes: function () {
@@ -145,7 +145,7 @@ function copyDashboardToUser() {
                 }
             );
             ajaxRequest.withTokenInUrl();
-            ajaxRequest.send(true);
+            ajaxRequest.send();
         }
     });
 }
@@ -199,10 +199,11 @@ function copyDashboardToUser() {
                 return self.isWidgetAvailable(widgetUniqueId);
             },
             onSelect: function (widgetUniqueId) {
-                var widget = widgetsHelper.getWidgetObjectFromUniqueId(widgetUniqueId);
-                self.$element.removeClass('expanded');
+                widgetsHelper.getWidgetObjectFromUniqueId(widgetUniqueId, function(widget){
+                    self.$element.removeClass('expanded');
+                    self.widgetSelected(widget);
+                });
 
-                self.widgetSelected(widget);
             },
             resetOnSelect: true
         });
diff --git a/plugins/Dashboard/javascripts/dashboardObject.js b/plugins/Dashboard/javascripts/dashboardObject.js
index 6af7a1ec05..c72f53a8c9 100644
--- a/plugins/Dashboard/javascripts/dashboardObject.js
+++ b/plugins/Dashboard/javascripts/dashboardObject.js
@@ -182,7 +182,7 @@
             );
             ajaxRequest.setLoadingElement();
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(true);
+            ajaxRequest.send();
         },
 
         rebuildMenu: rebuildMenu,
@@ -211,7 +211,7 @@
             );
             ajaxRequest.withTokenInUrl();
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(true);
+            ajaxRequest.send();
         },
 
         /**
@@ -647,7 +647,7 @@
 
             ajaxRequest.withTokenInUrl();
             ajaxRequest.setFormat('html');
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         }
     }
 
diff --git a/plugins/Dashboard/javascripts/dashboardWidget.js b/plugins/Dashboard/javascripts/dashboardWidget.js
index ce88cf1c8f..6756b1d291 100755
--- a/plugins/Dashboard/javascripts/dashboardWidget.js
+++ b/plugins/Dashboard/javascripts/dashboardWidget.js
@@ -204,81 +204,83 @@
          */
         _createDashboardWidget: function (uniqueId) {
 
-            var widgetName = widgetsHelper.getWidgetNameFromUniqueId(uniqueId);
-            if (!widgetName) {
-                widgetName = _pk_translate('Dashboard_WidgetNotFound');
-            }
+            var self = this;
 
-            var title = this.options.title === null ? $('<span/>').text(widgetName) : this.options.title;
-            var emptyWidgetContent = require('piwik/UI/Dashboard').WidgetFactory.make(uniqueId, title);
-            this.element.html(emptyWidgetContent);
+            widgetsHelper.getWidgetNameFromUniqueId(uniqueId, function(widgetName) {
+                if (!widgetName) {
+                    widgetName = _pk_translate('Dashboard_WidgetNotFound');
+                }
 
-            var widgetElement = $('[id="' + uniqueId + '"]', this.element);
-            var self = this;
-            widgetElement
-                .on('mouseenter.dashboardWidget', function () {
-                    if (!self.isMaximised) {
-                        $(this).addClass('widgetHover');
-                        $('.widgetTop', this).addClass('widgetTopHover');
-                    }
-                })
-                .on('mouseleave.dashboardWidget', function () {
-                    if (!self.isMaximised) {
-                        $(this).removeClass('widgetHover');
-                        $('.widgetTop', this).removeClass('widgetTopHover');
-                    }
-                });
-
-            if (this.options.isHidden) {
-                $('.widgetContent', widgetElement).toggleClass('hidden').closest('.widget').toggleClass('hiddenContent');
-            }
+                var title = self.options.title === null ? $('<span/>').text(widgetName) : self.options.title;
+                var emptyWidgetContent = require('piwik/UI/Dashboard').WidgetFactory.make(uniqueId, title);
+                self.element.html(emptyWidgetContent);
 
-            $('.button#close', widgetElement)
-                .on('click.dashboardWidget', function (ev) {
-                    piwikHelper.modalConfirm('#confirm', {yes: function () {
-                        if (self.options.onRemove) {
-                            self.options.onRemove(self.element);
+                var widgetElement = $('[id="' + uniqueId + '"]', self.element);
+                widgetElement
+                    .on('mouseenter.dashboardWidget', function () {
+                        if (!self.isMaximised) {
+                            $(this).addClass('widgetHover');
+                            $('.widgetTop', this).addClass('widgetTopHover');
+                        }
+                    })
+                    .on('mouseleave.dashboardWidget', function () {
+                        if (!self.isMaximised) {
+                            $(this).removeClass('widgetHover');
+                            $('.widgetTop', this).removeClass('widgetTopHover');
+                        }
+                    });
+
+                if (self.options.isHidden) {
+                    $('.widgetContent', widgetElement).toggleClass('hidden').closest('.widget').toggleClass('hiddenContent');
+                }
+
+                $('.button#close', widgetElement)
+                    .on('click.dashboardWidget', function (ev) {
+                        piwikHelper.modalConfirm('#confirm', {yes: function () {
+                            if (self.options.onRemove) {
+                                self.options.onRemove(self.element);
+                            } else {
+                                self.element.remove();
+                                self.options.onChange();
+                            }
+                        }});
+                    });
+
+                $('.button#maximise', widgetElement)
+                    .on('click.dashboardWidget', function (ev) {
+                        if (self.options.onMaximise) {
+                            self.options.onMaximise(self.element);
                         } else {
-                            self.element.remove();
-                            self.options.onChange();
+                            if ($('.widgetContent', $(this).parents('.widget')).hasClass('hidden')) {
+                                self.showContent();
+                            } else {
+                                self.maximise();
+                            }
                         }
-                    }});
-                });
-
-            $('.button#maximise', widgetElement)
-                .on('click.dashboardWidget', function (ev) {
-                    if (self.options.onMaximise) {
-                        self.options.onMaximise(self.element);
-                    } else {
-                        if ($('.widgetContent', $(this).parents('.widget')).hasClass('hidden')) {
-                            self.showContent();
+                    });
+
+                $('.button#minimise', widgetElement)
+                    .on('click.dashboardWidget', function (ev) {
+                        if (self.options.onMinimise) {
+                            self.options.onMinimise(self.element);
                         } else {
-                            self.maximise();
+                            if (!self.isMaximised) {
+                                self.hideContent();
+                            } else {
+                                self.element.dialog("close");
+                            }
                         }
-                    }
-                });
-
-            $('.button#minimise', widgetElement)
-                .on('click.dashboardWidget', function (ev) {
-                    if (self.options.onMinimise) {
-                        self.options.onMinimise(self.element);
-                    } else {
-                        if (!self.isMaximised) {
-                            self.hideContent();
+                    });
+
+                $('.button#refresh', widgetElement)
+                    .on('click.dashboardWidget', function (ev) {
+                        if (self.options.onRefresh) {
+                            self.options.onRefresh(self.element);
                         } else {
-                            self.element.dialog("close");
+                            self.reload(false, true);
                         }
-                    }
-                });
-
-            $('.button#refresh', widgetElement)
-                .on('click.dashboardWidget', function (ev) {
-                    if (self.options.onRefresh) {
-                        self.options.onRefresh(self.element);
-                    } else {
-                        self.reload(false, true);
-                    }
-                });
+                    });
+            });
         },
 
         /**
@@ -350,8 +352,7 @@
          */
         detachWidget: function () {
             this.element.before('<div id="' + this.uniqueId + '-placeholder" class="widgetPlaceholder widget"> </div>');
-            var placeholder = $('[id="' + self.uniqueId + '-placeholder"]')
-
+            var placeholder = $('[id="' + self.uniqueId + '-placeholder"]');
 
             $('#' + this.uniqueId + '-placeholder').height(this.element.height());
             $('#' + this.uniqueId + '-placeholder').width(this.element.width() - 16);
diff --git a/plugins/Dashboard/javascripts/widgetMenu.js b/plugins/Dashboard/javascripts/widgetMenu.js
index 55eef4ab09..465e8001f5 100644
--- a/plugins/Dashboard/javascripts/widgetMenu.js
+++ b/plugins/Dashboard/javascripts/widgetMenu.js
@@ -89,47 +89,50 @@ widgetsHelper.getAvailableWidgets = function (callback) {
             }
             $('#loadingError').show();
         });
-        ajaxRequest.send(true);
+        ajaxRequest.send();
+        return;
     }
 
     if (callback) {
         callback(widgetsHelper.availableWidgets);
     }
-
-    return widgetsHelper.availableWidgets;
 };
 
 /**
- * Returns the complete widget object by its unique id
+ * Determines the complete widget object by its unique id and sends it to callback method
  *
  * @param {string} uniqueId
- * @return {object} widget object
+ * @param {function} callback
  */
-widgetsHelper.getWidgetObjectFromUniqueId = function (uniqueId) {
-    var widgets = widgetsHelper.getAvailableWidgets();
-    for (var widgetCategory in widgets) {
-        var widgetInCategory = widgets[widgetCategory];
-        for (var i in widgetInCategory) {
-            if (widgetInCategory[i]["uniqueId"] == uniqueId) {
-                return widgetInCategory[i];
+widgetsHelper.getWidgetObjectFromUniqueId = function (uniqueId, callback) {
+    widgetsHelper.getAvailableWidgets(function(widgets){
+        for (var widgetCategory in widgets) {
+            var widgetInCategory = widgets[widgetCategory];
+            for (var i in widgetInCategory) {
+                if (widgetInCategory[i]["uniqueId"] == uniqueId) {
+                    callback(widgetInCategory[i]);
+                    return;
+                }
             }
         }
-    }
-    return false;
+        callback(false);
+    });
 };
 
 /**
- * Returns the name of a widget by its unique id
+ * Determines the name of a widget by its unique id and sends it to the callback
  *
  * @param {string} uniqueId  unique id of the widget
+ * @param {function} callback
  * @return {string}
  */
-widgetsHelper.getWidgetNameFromUniqueId = function (uniqueId) {
-    var widget = this.getWidgetObjectFromUniqueId(uniqueId);
-    if (widget == false) {
-        return false;
-    }
-    return widget["name"];
+widgetsHelper.getWidgetNameFromUniqueId = function (uniqueId, callback) {
+    this.getWidgetObjectFromUniqueId(uniqueId, function(widget) {
+        if (widget == false) {
+            callback(false);
+        }
+        callback(widget["name"]);
+    });
 };
 
 /**
@@ -155,7 +158,7 @@ widgetsHelper.loadWidgetAjax = function (widgetUniqueId, widgetParameters, onWid
         ajaxRequest.setErrorCallback(onWidgetErrorCallback);
     }
     ajaxRequest.setFormat('html');
-    ajaxRequest.send(false);
+    ajaxRequest.send();
     return ajaxRequest;
 };
 
@@ -389,6 +392,7 @@ widgetsHelper.loadWidgetAjax = function (widgetUniqueId, widgetParameters, onWid
              * Show widget with the given uniqueId in preview
              *
              * @param {string} widgetUniqueId unique id of widget to display
+             * @param          widgetPreview
              * @return {void}
              */
             function showPreview(widgetUniqueId, widgetPreview) {
@@ -399,39 +403,40 @@ widgetsHelper.loadWidgetAjax = function (widgetUniqueId, widgetParameters, onWid
 
                 var previewElement = createPreviewElement(widgetPreview);
 
-                var widget = widgetsHelper.getWidgetObjectFromUniqueId(widgetUniqueId);
-                var widgetParameters = widget['parameters'];
-
-                var emptyWidgetHtml = require('piwik/UI/Dashboard').WidgetFactory.make(
-                    widgetUniqueId,
-                    $('<div/>')
-                        .attr('title', _pk_translate("Dashboard_AddPreviewedWidget"))
-                        .text(_pk_translate('Dashboard_WidgetPreview'))
-                );
-                previewElement.html(emptyWidgetHtml);
-
-                var onWidgetLoadedCallback = function (response) {
-                    var widgetElement = $(document.getElementById(widgetUniqueId));
-                    // document.getElementById needed for widgets with uniqueid like widgetOpens+Contact+Form
-                    $('.widgetContent', widgetElement).html($(response));
-                    $('.widgetContent', widgetElement).trigger('widget:create');
-                    settings.onPreviewLoaded(widgetUniqueId, widgetElement);
-                    $('.' + settings.widgetpreviewClass + ' .widgetTop', widgetPreview).on('click', function () {
-                        settings.onSelect(widgetUniqueId);
-                        $(widgetPreview).closest('.dashboard-manager').removeClass('expanded');
-                        if (settings.resetOnSelect) {
-                            resetWidgetPreview(widgetPreview);
-                        }
-                        return false;
-                    });
-                };
-
-                // abort previous sent request
-                if (widgetPreview.widgetAjaxRequest) {
-                    widgetPreview.widgetAjaxRequest.abort();
-                }
+                widgetsHelper.getWidgetObjectFromUniqueId(widgetUniqueId, function(widget) {
+                    var widgetParameters = widget['parameters'];
+
+                    var emptyWidgetHtml = require('piwik/UI/Dashboard').WidgetFactory.make(
+                        widgetUniqueId,
+                        $('<div/>')
+                            .attr('title', _pk_translate("Dashboard_AddPreviewedWidget"))
+                            .text(_pk_translate('Dashboard_WidgetPreview'))
+                    );
+                    previewElement.html(emptyWidgetHtml);
+
+                    var onWidgetLoadedCallback = function (response) {
+                        var widgetElement = $(document.getElementById(widgetUniqueId));
+                        // document.getElementById needed for widgets with uniqueid like widgetOpens+Contact+Form
+                        $('.widgetContent', widgetElement).html($(response));
+                        $('.widgetContent', widgetElement).trigger('widget:create');
+                        settings.onPreviewLoaded(widgetUniqueId, widgetElement);
+                        $('.' + settings.widgetpreviewClass + ' .widgetTop', widgetPreview).on('click', function () {
+                            settings.onSelect(widgetUniqueId);
+                            $(widgetPreview).closest('.dashboard-manager').removeClass('expanded');
+                            if (settings.resetOnSelect) {
+                                resetWidgetPreview(widgetPreview);
+                            }
+                            return false;
+                        });
+                    };
+
+                    // abort previous sent request
+                    if (widgetPreview.widgetAjaxRequest) {
+                        widgetPreview.widgetAjaxRequest.abort();
+                    }
 
-                widgetPreview.widgetAjaxRequest = widgetsHelper.loadWidgetAjax(widgetUniqueId, widgetParameters, onWidgetLoadedCallback);
+                    widgetPreview.widgetAjaxRequest = widgetsHelper.loadWidgetAjax(widgetUniqueId, widgetParameters, onWidgetLoadedCallback);
+                });
             }
 
             /**
diff --git a/plugins/Dashboard/templates/embeddedIndex.twig b/plugins/Dashboard/templates/embeddedIndex.twig
index 92fc263a63..30afedc709 100644
--- a/plugins/Dashboard/templates/embeddedIndex.twig
+++ b/plugins/Dashboard/templates/embeddedIndex.twig
@@ -64,7 +64,8 @@
                 </div>
                 <div class="row">
                     <div class="col s12 m6"><label for="copyDashboardUser">{{ 'General_Username'|translate }} </label></div>
-                    <div class="col s12 m6"><select class="browser-default" name="copyDashboardUser" id="copyDashboardUser"></select></div>
+                    <div class="col s12 m6"><select class="browser-default" name="copyDashboardUser" id="copyDashboardUser">
+                            <option>{{ 'General_LoadingData'|translate }}</option></select></div>
                 </div>
             </div>
 
diff --git a/plugins/Live/javascripts/SegmentedVisitorLog.js b/plugins/Live/javascripts/SegmentedVisitorLog.js
index 4f80e3ddc7..6cc61ffdaa 100644
--- a/plugins/Live/javascripts/SegmentedVisitorLog.js
+++ b/plugins/Live/javascripts/SegmentedVisitorLog.js
@@ -131,7 +131,7 @@ var SegmentedVisitorLog = function() {
         ajaxRequest.addParams(requestParams, 'get');
         ajaxRequest.setCallback(callback);
         ajaxRequest.setFormat('html');
-        ajaxRequest.send(false);
+        ajaxRequest.send();
     }
 
     return {
diff --git a/plugins/Live/javascripts/live.js b/plugins/Live/javascripts/live.js
index 15076b1f66..83c27081d7 100644
--- a/plugins/Live/javascripts/live.js
+++ b/plugins/Live/javascripts/live.js
@@ -94,7 +94,7 @@
                     }
                 }
             });
-            ajaxRequest.send(false);
+            ajaxRequest.send();
         },
 
         /**
diff --git a/plugins/Live/templates/index.twig b/plugins/Live/templates/index.twig
index 5112c85d10..a908f77434 100644
--- a/plugins/Live/templates/index.twig
+++ b/plugins/Live/templates/index.twig
@@ -19,7 +19,7 @@
                 ajaxRequest.setCallback(function (r) {
                     $("#visitsTotal").html(r);
                 });
-                ajaxRequest.send(false);
+                ajaxRequest.send();
             },
             maxRows: 10,
             fadeInSpeed: 600,
diff --git a/plugins/Morpheus/javascripts/ajaxHelper.js b/plugins/Morpheus/javascripts/ajaxHelper.js
index e93c7a82e7..5360a35326 100644
--- a/plugins/Morpheus/javascripts/ajaxHelper.js
+++ b/plugins/Morpheus/javascripts/ajaxHelper.js
@@ -357,6 +357,9 @@ function ajaxHelper() {
 
     /**
      * Send the request
+     *
+     * Note: Sending synchronous requests will be removed in Matomo 4
+     *
      * @param {Boolean} [sync]  indicates if the request should be synchronous (defaults to false)
      * @return {void}
      */
diff --git a/plugins/Overlay/javascripts/Piwik_Overlay.js b/plugins/Overlay/javascripts/Piwik_Overlay.js
index 2b18578147..e0be6ce5c9 100644
--- a/plugins/Overlay/javascripts/Piwik_Overlay.js
+++ b/plugins/Overlay/javascripts/Piwik_Overlay.js
@@ -87,7 +87,7 @@ var Piwik_Overlay = (function () {
             $errorNotLoading.show();
         });
         ajaxRequest.setFormat('html');
-        ajaxRequest.send(false);
+        ajaxRequest.send();
     }
 
     /** Adjust the dimensions of the iframe */
diff --git a/plugins/SEO/javascripts/rank.js b/plugins/SEO/javascripts/rank.js
index 1b5cdb91d2..ef92aa8c3b 100644
--- a/plugins/SEO/javascripts/rank.js
+++ b/plugins/SEO/javascripts/rank.js
@@ -20,7 +20,7 @@ $(document).ready(function () {
             }
         );
         ajaxRequest.setFormat('html');
-        ajaxRequest.send(false);
+        ajaxRequest.send();
     }
 
     // click on Rank button
diff --git a/plugins/SegmentEditor/javascripts/Segmentation.js b/plugins/SegmentEditor/javascripts/Segmentation.js
index fb52e12548..df5cf288d1 100644
--- a/plugins/SegmentEditor/javascripts/Segmentation.js
+++ b/plugins/SegmentEditor/javascripts/Segmentation.js
@@ -671,7 +671,7 @@ Segmentation = (function($) {
                                 ajaxHandler.setCallback(function (response) {
                                     self.updateMethod(params);
                                 });
-                                ajaxHandler.send(true);
+                                ajaxHandler.send();
                             } else {
                                 self.updateMethod(params);
                             }
diff --git a/plugins/Transitions/javascripts/transitions.js b/plugins/Transitions/javascripts/transitions.js
index 1bb6b1043b..8e6a03ad79 100644
--- a/plugins/Transitions/javascripts/transitions.js
+++ b/plugins/Transitions/javascripts/transitions.js
@@ -1471,7 +1471,7 @@ Piwik_Transitions_Ajax.prototype.callTransitionsController = function (action, c
     }, 'get');
     ajaxRequest.setCallback(callback);
     ajaxRequest.setFormat('html');
-    ajaxRequest.send(false);
+    ajaxRequest.send();
 };
 
 Piwik_Transitions_Ajax.prototype.callApi = function (method, params, callback) {
@@ -1529,7 +1529,7 @@ Piwik_Transitions_Ajax.prototype.callApi = function (method, params, callback) {
             }
         }
     );
-    ajaxRequest.send(false);
+    ajaxRequest.send();
 };
 
 // --------------------------------------
diff --git a/plugins/Widgetize/angularjs/widget-preview/widget-preview.directive.js b/plugins/Widgetize/angularjs/widget-preview/widget-preview.directive.js
index 6694b15fae..eb9961548b 100644
--- a/plugins/Widgetize/angularjs/widget-preview/widget-preview.directive.js
+++ b/plugins/Widgetize/angularjs/widget-preview/widget-preview.directive.js
@@ -52,37 +52,38 @@
                 };
 
                 this.callbackAddExportButtonsUnderWidget = function (widgetUniqueId, loadedWidgetElement) {
-                    var widget = widgetsHelper.getWidgetObjectFromUniqueId(widgetUniqueId);
-                    var widgetParameters = widget['parameters'];
+                    widgetsHelper.getWidgetObjectFromUniqueId(widgetUniqueId, function(widget) {
+                        var widgetParameters = widget['parameters'];
 
-                    var exportButtonsElement = $('<span id="exportButtons">');
+                        var exportButtonsElement = $('<span id="exportButtons">');
 
-                    var urlIframe = getEmbedUrl(widgetParameters, "iframe");
-                    // We first build the HTML code that will load the widget in an IFRAME
-                    var widgetIframeHtml = '<div id="widgetIframe">' +
-                        '<iframe width="100%" height="350" src="' + urlIframe + '" scrolling="no" frameborder="0" marginheight="0" marginwidth="0">' +
-                        '</iframe>' +
-                        '</div>';
+                        var urlIframe = getEmbedUrl(widgetParameters, "iframe");
+                        // We first build the HTML code that will load the widget in an IFRAME
+                        var widgetIframeHtml = '<div id="widgetIframe">' +
+                            '<iframe width="100%" height="350" src="' + urlIframe + '" scrolling="no" frameborder="0" marginheight="0" marginwidth="0">' +
+                            '</iframe>' +
+                            '</div>';
 
-                    // Add the input field containing the widget in an Iframe
-                    $(exportButtonsElement).append(
-                        '<div id="embedThisWidgetIframe">' +
-                        '<label for="embedThisWidgetIframeInput">&rsaquo; Embed Iframe</label>' +
-                        '<div id="embedThisWidgetIframeInput">' +
-                        self.getInputFormWithHtml('iframeEmbed', widgetIframeHtml) +
-                        '</div>' +
-                        '</div>' +
-                        '<div> <label for="embedThisWidgetDirectLink">&rsaquo; Direct Link</label>' +
-                        '<div id="embedThisWidgetDirectLink"> ' + self.getInputFormWithHtml('directLinkEmbed', urlIframe) + ' - <a href="' + urlIframe + '" rel="noreferrer"  target="_blank">' + _pk_translate('Widgetize_OpenInNewWindow') + '</a></div>'
-                        + '</div>'
-                    );
+                        // Add the input field containing the widget in an Iframe
+                        $(exportButtonsElement).append(
+                            '<div id="embedThisWidgetIframe">' +
+                            '<label for="embedThisWidgetIframeInput">&rsaquo; Embed Iframe</label>' +
+                            '<div id="embedThisWidgetIframeInput">' +
+                            self.getInputFormWithHtml('iframeEmbed', widgetIframeHtml) +
+                            '</div>' +
+                            '</div>' +
+                            '<div> <label for="embedThisWidgetDirectLink">&rsaquo; Direct Link</label>' +
+                            '<div id="embedThisWidgetDirectLink"> ' + self.getInputFormWithHtml('directLinkEmbed', urlIframe) + ' - <a href="' + urlIframe + '" rel="noreferrer"  target="_blank">' + _pk_translate('Widgetize_OpenInNewWindow') + '</a></div>'
+                            + '</div>'
+                        );
 
-                    // Finally we append the content to the parent widget DIV
-                    $(loadedWidgetElement)
-                        .parent()
-                        .append(exportButtonsElement);
+                        // Finally we append the content to the parent widget DIV
+                        $(loadedWidgetElement)
+                            .parent()
+                            .append(exportButtonsElement);
 
-                    piwik.helper.compileAngularComponents(exportButtonsElement);
+                        piwik.helper.compileAngularComponents(exportButtonsElement);
+                    });
                 }
             },
             compile: function (element, attrs) {
diff --git a/tests/UI/specs/UIIntegration_spec.js b/tests/UI/specs/UIIntegration_spec.js
index 94dec399ce..4321882870 100644
--- a/tests/UI/specs/UIIntegration_spec.js
+++ b/tests/UI/specs/UIIntegration_spec.js
@@ -162,7 +162,7 @@ describe("UIIntegrationTest", function () { // TODO: Rename to Piwik?
             page.mouseMove('circle');
             page.evaluate(function(){
                 $('.ui-tooltip:visible .rel-time').data('actiontime', Math.floor(new Date((new Date()).getTime()-(4*3600*24000))/1000));
-            });
+            }, 100);
         }, done);
     });
 
@@ -178,22 +178,22 @@ describe("UIIntegrationTest", function () { // TODO: Rename to Piwik?
         expect.screenshot('actions_pages_tooltip_help').to.be.captureSelector('.pageWrap', function (page) {
             page.load("?" + urlBase + "#?" + generalParams + "&category=General_Actions&subcategory=General_Pages");
             page.mouseMove('[piwik-enriched-headline]');
-            page.click(".helpIcon");
+            page.click('.helpIcon');
             page.evaluate(function () {
                 $('.helpDate:visible').hide();
-            });
+            }, 100);
         }, done);
     });
 
     it('should load the actions > entry pages page correctly', function (done) {
         expect.screenshot('actions_entry_pages').to.be.captureSelector('.pageWrap', function (page) {
-            page.load("?" + urlBase + "#?" + generalParams + "&category=General_Actions&subcategory=Actions_SubmenuPagesEntry");
+            page.load("?" + urlBase + "#?" + generalParams + "&category=General_Actions&subcategory=Actions_SubmenuPagesEntry", 2000);
         }, done);
     });
 
     it('should load the actions > exit pages page correctly', function (done) {
         expect.screenshot('actions_exit_pages').to.be.captureSelector('.pageWrap', function (page) {
-            page.load("?" + urlBase + "#?" + generalParams + "&category=General_Actions&subcategory=Actions_SubmenuPagesExit");
+            page.load("?" + urlBase + "#?" + generalParams + "&category=General_Actions&subcategory=Actions_SubmenuPagesExit", 2000);
         }, done);
     });
 
@@ -211,7 +211,7 @@ describe("UIIntegrationTest", function () { // TODO: Rename to Piwik?
 
     it('should load the actions > outlinks page correctly', function (done) {
         expect.screenshot('actions_outlinks').to.be.captureSelector('.pageWrap', function (page) {
-            page.load("?" + urlBase + "#?" + generalParams + "&category=General_Actions&subcategory=General_Outlinks");
+            page.load("?" + urlBase + "#?" + generalParams + "&category=General_Actions&subcategory=General_Outlinks", 1500);
         }, done);
     });
 
@@ -305,8 +305,7 @@ describe("UIIntegrationTest", function () { // TODO: Rename to Piwik?
 
     it('should load the goals > management page correctly', function (done) {
         expect.screenshot('goals_manage').to.be.captureSelector('#content,.top_bar_sites_selector,.entityContainer', function (page) {
-            page.load("?" + generalParams + "&module=Goals&action=manage");
-            page.wait(200);
+            page.load("?" + generalParams + "&module=Goals&action=manage", 2000);
         }, done);
     });
 
diff --git a/tests/lib/screenshot-testing/support/page-renderer.js b/tests/lib/screenshot-testing/support/page-renderer.js
index 4800106c96..6627134db1 100644
--- a/tests/lib/screenshot-testing/support/page-renderer.js
+++ b/tests/lib/screenshot-testing/support/page-renderer.js
@@ -108,10 +108,12 @@ PageRenderer.prototype.selectMainFrame = function (waitTime) {
 };
 
 PageRenderer.prototype.reload = function (waitTime) {
+    waitTime = waitTime ? waitTime : 1000;
     this.queuedEvents.push([this._reload, waitTime]);
 };
 
 PageRenderer.prototype.load = function (url, waitTime) {
+    waitTime = waitTime ? waitTime : 1000;
     this.queuedEvents.push([this._load, waitTime, url]);
 };