diff --git a/src/controls/templates/ApplicationHeader.qml b/src/controls/templates/ApplicationHeader.qml
--- a/src/controls/templates/ApplicationHeader.qml
+++ b/src/controls/templates/ApplicationHeader.qml
@@ -273,6 +273,11 @@
                 x: titleList.wideMode || headerStyle == ApplicationHeaderStyle.Titles ? (Math.min(delegate.width - implicitWidth, Math.max(0, titleList.contentX - delegate.x + navButtons.width))) : 0
                 width: parent.width - x
 
+                Connections {
+                    target: delegateLoader.page
+                    Component.onDestruction: delegateLoader.sourceComponent = null
+                }
+
                 sourceComponent: header.pageDelegate
 
                 readonly property Page page: __appWindow.pageStack.get(modelData)
diff --git a/src/controls/templates/OverlayDrawer.qml b/src/controls/templates/OverlayDrawer.qml
--- a/src/controls/templates/OverlayDrawer.qml
+++ b/src/controls/templates/OverlayDrawer.qml
@@ -150,7 +150,7 @@
 
                 //try to take the last item
                 if (!item) {
-                    item = applicationWindow().pageStack.get(applicationWindow().pageStack.depth-1);
+                    item = applicationWindow().pageStack.lastItem;
                 }
 
                 var pageFooter = item && item.page ? item.page.footer : (item ? item.footer : undefined);
diff --git a/src/controls/templates/OverlaySheet.qml b/src/controls/templates/OverlaySheet.qml
--- a/src/controls/templates/OverlaySheet.qml
+++ b/src/controls/templates/OverlaySheet.qml
@@ -314,7 +314,7 @@
             z: 2
             Item {
                 id: headerParent
-                implicitHeight: header.implicitHeight
+                implicitHeight: header ? header.implicitHeight : 0
                 anchors {
                     fill: parent
                     margins: Units.smallSpacing
@@ -352,7 +352,7 @@
             z: 2
             Item {
                 id: footerParent
-                implicitHeight: footer.implicitHeight
+                implicitHeight: footer ? footer.implicitHeight : 0
                 anchors {
                     fill: parent
                     margins: Units.smallSpacing
@@ -418,20 +418,17 @@
         }
 
         Binding {
-            when: scrollView.verticalScrollBar != null
-            target: scrollView.verticalScrollBar.anchors
+            target: scrollView.verticalScrollBar ? scrollView.verticalScrollBar.anchors : null
             property: "topMargin"
             value: headerItem.y + headerItem.height
         }
         Binding {
-            when: scrollView.verticalScrollBar != null
             target: scrollView.verticalScrollBar
             property: "height"
-            value: mainItem.height - scrollView.verticalScrollBar.anchors.topMargin - (mainItem.height - footerItem.y)
+            value: mainItem.height - (scrollView.verticalScrollBar ? scrollView.verticalScrollBar.anchors.topMargin : 0) - (mainItem.height - footerItem.y)
         }
         Binding {
-            when: scrollView.verticalScrollBar != null
-            target: scrollView.verticalScrollBar.anchors
+            target: scrollView.verticalScrollBar ? scrollView.verticalScrollBar.anchors : null
             property: "rightMargin"
             value: mainItem.width - flickableContents.width - flickableContents.x
         }