diff --git a/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-debug.js b/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-debug.js
index 5ab6c8071c6..3ada4cc03c7 100644
--- a/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-debug.js
+++ b/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-debug.js
@@ -98,6 +98,16 @@ Y.extend(DIALOGUE, Y.Panel, {
     _orientationevent : null,
     _calculatedzindex : false,
 
+    /**
+     * The original position of the dialogue before it was reposition to
+     * avoid browser jumping.
+     *
+     * @property _originalPosition
+     * @protected
+     * @type Array
+     */
+    _originalPosition: null,
+
     /**
      * Initialise the dialogue.
      *
@@ -132,14 +142,21 @@ Y.extend(DIALOGUE, Y.Panel, {
         }
         // Recalculate the zIndex every time the modal is altered.
         this.on('maskShow', this.applyZIndex);
-        // We must show - after the dialogue has been positioned,
-        // either by centerDialogue or makeResonsive. This is because the show() will trigger
-        // a focus on the dialogue, which will scroll the page. If the dialogue has not
-        // been positioned it will scroll back to the top of the page.
-        if (this.get('visible')) {
-            this.show();
-            this.keyDelegation();
-        }
+
+        this.on('maskShow', function() {
+            // When the mask shows, position the boundingBox at the top-left of the window such that when it is
+            // focused, the position does not change.
+            var w = Y.one(Y.config.win),
+                bb = this.get('boundingBox');
+
+            if (!this.get('center')) {
+                this._originalPosition = bb.getXY();
+            }
+            bb.setStyles({
+                top: w.get('scrollTop'),
+                left: w.get('scrollLeft')
+            });
+        }, this);
 
         // Remove the dialogue from the DOM when it is destroyed.
         this.after('destroyedChange', function(){
@@ -325,7 +342,7 @@ Y.extend(DIALOGUE, Y.Panel, {
                Math.floor(Y.one(document.body).get('winWidth')) < this.get('responsiveWidth');
     },
 
-    show : function() {
+    show: function() {
         var result = null,
             header = this.headerNode,
             content = this.bodyNode,
@@ -334,6 +351,11 @@ Y.extend(DIALOGUE, Y.Panel, {
 
         result = DIALOGUE.superclass.show.call(this);
 
+        if (!this.get('center') && this._originalPosition) {
+            // Restore the dialogue position to it's location before it was moved at show time.
+            this.get('boundingBox').setXY(this._originalPosition);
+        }
+
         // Lock scroll if the plugin is present.
         if (this.lockScroll) {
             // We need to force the scroll locking for full screen dialogues, even if they have a small vertical size to
diff --git a/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-min.js b/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-min.js
index 8b58eea61aa..547ce89343b 100644
--- a/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-min.js
+++ b/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue-min.js
@@ -1,2 +1,2 @@
-YUI.add("moodle-core-notification-dialogue",function(e,t){var n,r,i,s,o,u,a;n="moodle-dialogue",r="notificationBase",i="yesLabel",s="noLabel",o="title",u="question",a={BASE:"moodle-dialogue-base",WRAP:"moodle-dialogue-wrap",HEADER:"moodle-dialogue-hd",BODY:"moodle-dialogue-bd",CONTENT:"moodle-dialogue-content",FOOTER:"moodle-dialogue-ft",HIDDEN:"hidden",LIGHTBOX:"moodle-dialogue-lightbox"},M.core=M.core||{};var f="Moodle dialogue",l,c=n+"-fullscreen",h=n+"-hidden",p=" [role=dialog]",d="[role=menubar]",v=".",m="moodle-has-zindex",g='input:not([type="hidden"]), a[href], button, textarea, select, [tabindex]';l=function(t){var n=e.clone(t);n.COUNT=e.stamp(this);var r="moodle-dialogue-"+n.COUNT;n.notificationBase=e.Node.create('<div class="'+a.BASE+'">').append(e.Node.create('<div id="'+r+'" role="dialog" aria-labelledby="'+r+'-header-text" class="'+a.WRAP+'"></div>').append(e.Node.create('<div id="'+r+'-header-text" class="'+a.HEADER+' yui3-widget-hd"></div>')).append(e.Node.create('<div class="'+a.BODY+' yui3-widget-bd"></div>')).append(e.Node.create('<div class="'+a.FOOTER+' yui3-widget-ft"></div>'))),e.one(document.body).append(n.notificationBase),n.additionalBaseClass&&n.notificationBase.addClass(n.additionalBaseClass),n.srcNode="#"+r,n.closeButton===!1?n.buttons=null:n.buttons=[{section:e.WidgetStdMod.HEADER,classNames:"closebutton",action:function(){this.hide()}}],l.superclass.constructor.apply(this,[n]),n.closeButton!==!1&&this.get("buttons").header[0].setAttribute("title",this.get("closeButtonTitle"))},e.extend(l,e.Panel,{_resizeevent:null,_orientationevent:null,_calculatedzindex:!1,initializer:function(){var t;this.get("render")&&this.render(),this.makeResponsive(),this.after("visibleChange",this.visibilityChanged,this),this.get("center")&&this.centerDialogue(),this.get("modal")&&this.plug(e.M.core.LockScroll),t=this.get("boundingBox"),t.addClass(m),e.Array.each(this.get("extraClasses"),t.addClass,t),this.get("visible")&&this.applyZIndex(),this.on("maskShow",this.applyZIndex),this.get("visible")&&(this.show(),this.keyDelegation()),this.after("destroyedChange",function(){this.get(r).remove(!0)},this)},applyZIndex:function(){var t=1,n=1,r=this.get("boundingBox"),i=this.get("maskNode"),s=this.get("zIndex");s!==0&&!this._calculatedzindex?r.setStyle("zIndex",s):(e.all(p+", "+d+", "+v+m).each(function(e){var n=this.findZIndex(e);n>t&&(t=n)},this),n=(t+1).toString(),r.setStyle("zIndex",n),this.set("zIndex",n),this.get("modal")&&(i.setStyle("zIndex",n),e.UA.ie&&e.UA.compareVersions(e.UA.ie,9)<0&&setTimeout(function(){i.setStyle("position","static"),setTimeout(function(){i.setStyle("position","fixed")},0)},0)),this._calculatedzindex=!0)},findZIndex:function(e){var t=e.getStyle("zIndex")||e.ancestor().getStyle("zIndex");return t?parseInt(t,10):0},visibilityChanged:function(t){var n,r;t.attrName==="visible"&&(this.get("maskNode").addClass(a.LIGHTBOX),t.prevVal&&!t.newVal&&(r=this.get("boundingBox"),this._resizeevent&&(this._resizeevent.detach(),this._resizeevent=null),this._orientationevent&&(this._orientationevent.detach(),this._orientationevent=null),r.detach("key",this.keyDelegation)),!t.prevVal&&t.newVal&&(this.applyZIndex(),this.makeResponsive(),this.shouldResizeFullscreen()||this.get("draggable")&&(n="#"+this.get("id")+" ."+a.HEADER,this.plug(e.Plugin.Drag,{handles:[n]}),e.one(n).setStyle("cursor","move")),this.keyDelegation()),this.get("center")&&!t.prevVal&&t.newVal&&this.centerDialogue())},makeResponsive:function(){var t=this.get("boundingBox"),n;this.shouldResizeFullscreen()?(t.addClass(c),t.setStyles({left:null,top:null,width:null,height:null,right:null,bottom:null}),n=e.one("#"+this.get("id")+" ."+a.BODY)):this.get("responsive")&&(t.removeClass(c).setStyles({width:this.get("width"),height:this.get("height")}),n=e.one("#"+this.get("id")+" ."+a.BODY))},centerDialogue:function(){var t=this.get("boundingBox"),n=t.hasClass(h),r,i;if(this.shouldResizeFullscreen())return;n&&t.setStyle("top","-1000px").removeClass(h),r=Math.max(Math.round((t.get("winWidth")-t.get("offsetWidth"))/2),15),i=Math.max(Math.round((t.get("winHeight")-t.get("offsetHeight"))/2),15)+e.one(window).get("scrollTop"),t.setStyles({left:r,top:i}),n&&t.addClass(h)},shouldResizeFullscreen:function(){return window===window.parent&&this.get("responsive")&&Math.floor(e.one(document.body).get("winWidth"))<this.get("responsiveWidth")},show:function(){var e=null,t=this.headerNode,n=this.bodyNode,r=this.get("focusOnShowSelector"),i=null;return e=l.superclass.show.call(this),this.lockScroll&&this.lockScroll.enableScrollLock(this.shouldResizeFullscreen()),r!==null&&(i=this.get("boundingBox").one(r)),i||(t&&t!==""?i=t:n&&n!==""&&(i=n)),i&&i.focus(),e},hide:function(e){if(e&&e.type==="key"&&e.keyCode===27&&!this.get("focused"))return;return this.lockScroll&&this.lockScroll.disableScrollLock(),l.superclass.hide.call(this,arguments)},keyDelegation:function(){var e=this.get("boundingBox");e.delegate("key",function(e){var t=e.target,n="forward";e.shiftKey&&(n="backward"),this.trapFocus(t,n)&&e.preventDefault()},"down:9",g,this)},trapFocus:function(e,t){var n=this.get("boundingBox"),r=n.one(g),i=n.all(g).pop();if(e===i&&t==="forward")return r.focus();if(e===r&&t==="backward")return i.focus()}},{NAME:f,CSS_PREFIX:n,ATTRS:{notificationBase:{},lightbox:{lazyAdd:!1,setter:function(e){this.set("modal",e)}},closeButton:{validator:e.Lang.isBoolean,value:!0},closeButtonTitle:{validator:e.Lang.isString,value:M.util.get_string("closebuttontitle","moodle")},center:{validator:e.Lang.isBoolean,value:!0},draggable:{validator:e.Lang.isBoolean,value:!1},COUNT:{value:null},responsive:{validator:e.Lang.isBoolean,value:!0},responsiveWidth:{value:768},focusOnShowSelector:{value:null}}}),e.Base.modifyAttrs(l,{width:{value:"400px",setter:function(e){return e==="auto"?"":e}},visible:{value:!1},centered:{setter:function(e){return e&&this.set("center",!0),!1}},render:{value:!0,writeOnce:!0},extraClasses:{value:[]}}),e.Base.mix(l,[e.M.core.WidgetFocusAfterHide]),M.core
-.dialogue=l;var y=function(){y.superclass.constructor.apply(this,arguments)};e.extend(y,M.core.dialogue,{},{NAME:"Moodle information dialogue",CSS_PREFIX:n}),e.Base.modifyAttrs(y,{visible:{value:!0},modal:{validator:e.Lang.isBoolean,value:!0}}),M.core.notification=M.core.notification||{},M.core.notification.info=y},"@VERSION@",{requires:["base","node","panel","escape","event-key","dd-plugin","moodle-core-widget-focusafterclose","moodle-core-lockscroll"]});
+YUI.add("moodle-core-notification-dialogue",function(e,t){var n,r,i,s,o,u,a;n="moodle-dialogue",r="notificationBase",i="yesLabel",s="noLabel",o="title",u="question",a={BASE:"moodle-dialogue-base",WRAP:"moodle-dialogue-wrap",HEADER:"moodle-dialogue-hd",BODY:"moodle-dialogue-bd",CONTENT:"moodle-dialogue-content",FOOTER:"moodle-dialogue-ft",HIDDEN:"hidden",LIGHTBOX:"moodle-dialogue-lightbox"},M.core=M.core||{};var f="Moodle dialogue",l,c=n+"-fullscreen",h=n+"-hidden",p=" [role=dialog]",d="[role=menubar]",v=".",m="moodle-has-zindex",g='input:not([type="hidden"]), a[href], button, textarea, select, [tabindex]';l=function(t){var n=e.clone(t);n.COUNT=e.stamp(this);var r="moodle-dialogue-"+n.COUNT;n.notificationBase=e.Node.create('<div class="'+a.BASE+'">').append(e.Node.create('<div id="'+r+'" role="dialog" aria-labelledby="'+r+'-header-text" class="'+a.WRAP+'"></div>').append(e.Node.create('<div id="'+r+'-header-text" class="'+a.HEADER+' yui3-widget-hd"></div>')).append(e.Node.create('<div class="'+a.BODY+' yui3-widget-bd"></div>')).append(e.Node.create('<div class="'+a.FOOTER+' yui3-widget-ft"></div>'))),e.one(document.body).append(n.notificationBase),n.additionalBaseClass&&n.notificationBase.addClass(n.additionalBaseClass),n.srcNode="#"+r,n.closeButton===!1?n.buttons=null:n.buttons=[{section:e.WidgetStdMod.HEADER,classNames:"closebutton",action:function(){this.hide()}}],l.superclass.constructor.apply(this,[n]),n.closeButton!==!1&&this.get("buttons").header[0].setAttribute("title",this.get("closeButtonTitle"))},e.extend(l,e.Panel,{_resizeevent:null,_orientationevent:null,_calculatedzindex:!1,_originalPosition:null,initializer:function(){var t;this.get("render")&&this.render(),this.makeResponsive(),this.after("visibleChange",this.visibilityChanged,this),this.get("center")&&this.centerDialogue(),this.get("modal")&&this.plug(e.M.core.LockScroll),t=this.get("boundingBox"),t.addClass(m),e.Array.each(this.get("extraClasses"),t.addClass,t),this.get("visible")&&this.applyZIndex(),this.on("maskShow",this.applyZIndex),this.on("maskShow",function(){var t=e.one(e.config.win),n=this.get("boundingBox");this.get("center")||(this._originalPosition=n.getXY()),n.setStyles({top:t.get("scrollTop"),left:t.get("scrollLeft")})},this),this.after("destroyedChange",function(){this.get(r).remove(!0)},this)},applyZIndex:function(){var t=1,n=1,r=this.get("boundingBox"),i=this.get("maskNode"),s=this.get("zIndex");s!==0&&!this._calculatedzindex?r.setStyle("zIndex",s):(e.all(p+", "+d+", "+v+m).each(function(e){var n=this.findZIndex(e);n>t&&(t=n)},this),n=(t+1).toString(),r.setStyle("zIndex",n),this.set("zIndex",n),this.get("modal")&&(i.setStyle("zIndex",n),e.UA.ie&&e.UA.compareVersions(e.UA.ie,9)<0&&setTimeout(function(){i.setStyle("position","static"),setTimeout(function(){i.setStyle("position","fixed")},0)},0)),this._calculatedzindex=!0)},findZIndex:function(e){var t=e.getStyle("zIndex")||e.ancestor().getStyle("zIndex");return t?parseInt(t,10):0},visibilityChanged:function(t){var n,r;t.attrName==="visible"&&(this.get("maskNode").addClass(a.LIGHTBOX),t.prevVal&&!t.newVal&&(r=this.get("boundingBox"),this._resizeevent&&(this._resizeevent.detach(),this._resizeevent=null),this._orientationevent&&(this._orientationevent.detach(),this._orientationevent=null),r.detach("key",this.keyDelegation)),!t.prevVal&&t.newVal&&(this.applyZIndex(),this.makeResponsive(),this.shouldResizeFullscreen()||this.get("draggable")&&(n="#"+this.get("id")+" ."+a.HEADER,this.plug(e.Plugin.Drag,{handles:[n]}),e.one(n).setStyle("cursor","move")),this.keyDelegation()),this.get("center")&&!t.prevVal&&t.newVal&&this.centerDialogue())},makeResponsive:function(){var t=this.get("boundingBox"),n;this.shouldResizeFullscreen()?(t.addClass(c),t.setStyles({left:null,top:null,width:null,height:null,right:null,bottom:null}),n=e.one("#"+this.get("id")+" ."+a.BODY)):this.get("responsive")&&(t.removeClass(c).setStyles({width:this.get("width"),height:this.get("height")}),n=e.one("#"+this.get("id")+" ."+a.BODY))},centerDialogue:function(){var t=this.get("boundingBox"),n=t.hasClass(h),r,i;if(this.shouldResizeFullscreen())return;n&&t.setStyle("top","-1000px").removeClass(h),r=Math.max(Math.round((t.get("winWidth")-t.get("offsetWidth"))/2),15),i=Math.max(Math.round((t.get("winHeight")-t.get("offsetHeight"))/2),15)+e.one(window).get("scrollTop"),t.setStyles({left:r,top:i}),n&&t.addClass(h)},shouldResizeFullscreen:function(){return window===window.parent&&this.get("responsive")&&Math.floor(e.one(document.body).get("winWidth"))<this.get("responsiveWidth")},show:function(){var e=null,t=this.headerNode,n=this.bodyNode,r=this.get("focusOnShowSelector"),i=null;return e=l.superclass.show.call(this),!this.get("center")&&this._originalPosition&&this.get("boundingBox").setXY(this._originalPosition),this.lockScroll&&this.lockScroll.enableScrollLock(this.shouldResizeFullscreen()),r!==null&&(i=this.get("boundingBox").one(r)),i||(t&&t!==""?i=t:n&&n!==""&&(i=n)),i&&i.focus(),e},hide:function(e){if(e&&e.type==="key"&&e.keyCode===27&&!this.get("focused"))return;return this.lockScroll&&this.lockScroll.disableScrollLock(),l.superclass.hide.call(this,arguments)},keyDelegation:function(){var e=this.get("boundingBox");e.delegate("key",function(e){var t=e.target,n="forward";e.shiftKey&&(n="backward"),this.trapFocus(t,n)&&e.preventDefault()},"down:9",g,this)},trapFocus:function(e,t){var n=this.get("boundingBox"),r=n.one(g),i=n.all(g).pop();if(e===i&&t==="forward")return r.focus();if(e===r&&t==="backward")return i.focus()}},{NAME:f,CSS_PREFIX:n,ATTRS:{notificationBase:{},lightbox:{lazyAdd:!1,setter:function(e){this.set("modal",e)}},closeButton:{validator:e.Lang.isBoolean,value:!0},closeButtonTitle:{validator:e.Lang.isString,value:M.util.get_string("closebuttontitle","moodle")},center:{validator:e.Lang.isBoolean,value:!0},draggable:{validator:e.Lang.isBoolean,value:!1},COUNT:{value:null},responsive:{validator:e.Lang.isBoolean,value:!0},responsiveWidth:{value:768},focusOnShowSelector:{value:null}}}),e.Base
+.modifyAttrs(l,{width:{value:"400px",setter:function(e){return e==="auto"?"":e}},visible:{value:!1},centered:{setter:function(e){return e&&this.set("center",!0),!1}},render:{value:!0,writeOnce:!0},extraClasses:{value:[]}}),e.Base.mix(l,[e.M.core.WidgetFocusAfterHide]),M.core.dialogue=l;var y=function(){y.superclass.constructor.apply(this,arguments)};e.extend(y,M.core.dialogue,{},{NAME:"Moodle information dialogue",CSS_PREFIX:n}),e.Base.modifyAttrs(y,{visible:{value:!0},modal:{validator:e.Lang.isBoolean,value:!0}}),M.core.notification=M.core.notification||{},M.core.notification.info=y},"@VERSION@",{requires:["base","node","panel","escape","event-key","dd-plugin","moodle-core-widget-focusafterclose","moodle-core-lockscroll"]});
diff --git a/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue.js b/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue.js
index dadf0e82fd6..e5f5f104e59 100644
--- a/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue.js
+++ b/lib/yui/build/moodle-core-notification-dialogue/moodle-core-notification-dialogue.js
@@ -98,6 +98,16 @@ Y.extend(DIALOGUE, Y.Panel, {
     _orientationevent : null,
     _calculatedzindex : false,
 
+    /**
+     * The original position of the dialogue before it was reposition to
+     * avoid browser jumping.
+     *
+     * @property _originalPosition
+     * @protected
+     * @type Array
+     */
+    _originalPosition: null,
+
     /**
      * Initialise the dialogue.
      *
@@ -132,14 +142,21 @@ Y.extend(DIALOGUE, Y.Panel, {
         }
         // Recalculate the zIndex every time the modal is altered.
         this.on('maskShow', this.applyZIndex);
-        // We must show - after the dialogue has been positioned,
-        // either by centerDialogue or makeResonsive. This is because the show() will trigger
-        // a focus on the dialogue, which will scroll the page. If the dialogue has not
-        // been positioned it will scroll back to the top of the page.
-        if (this.get('visible')) {
-            this.show();
-            this.keyDelegation();
-        }
+
+        this.on('maskShow', function() {
+            // When the mask shows, position the boundingBox at the top-left of the window such that when it is
+            // focused, the position does not change.
+            var w = Y.one(Y.config.win),
+                bb = this.get('boundingBox');
+
+            if (!this.get('center')) {
+                this._originalPosition = bb.getXY();
+            }
+            bb.setStyles({
+                top: w.get('scrollTop'),
+                left: w.get('scrollLeft')
+            });
+        }, this);
 
         // Remove the dialogue from the DOM when it is destroyed.
         this.after('destroyedChange', function(){
@@ -325,7 +342,7 @@ Y.extend(DIALOGUE, Y.Panel, {
                Math.floor(Y.one(document.body).get('winWidth')) < this.get('responsiveWidth');
     },
 
-    show : function() {
+    show: function() {
         var result = null,
             header = this.headerNode,
             content = this.bodyNode,
@@ -334,6 +351,11 @@ Y.extend(DIALOGUE, Y.Panel, {
 
         result = DIALOGUE.superclass.show.call(this);
 
+        if (!this.get('center') && this._originalPosition) {
+            // Restore the dialogue position to it's location before it was moved at show time.
+            this.get('boundingBox').setXY(this._originalPosition);
+        }
+
         // Lock scroll if the plugin is present.
         if (this.lockScroll) {
             // We need to force the scroll locking for full screen dialogues, even if they have a small vertical size to
diff --git a/lib/yui/src/notification/js/dialogue.js b/lib/yui/src/notification/js/dialogue.js
index b7788c27c66..aac1b9c5588 100644
--- a/lib/yui/src/notification/js/dialogue.js
+++ b/lib/yui/src/notification/js/dialogue.js
@@ -69,6 +69,16 @@ Y.extend(DIALOGUE, Y.Panel, {
     _orientationevent : null,
     _calculatedzindex : false,
 
+    /**
+     * The original position of the dialogue before it was reposition to
+     * avoid browser jumping.
+     *
+     * @property _originalPosition
+     * @protected
+     * @type Array
+     */
+    _originalPosition: null,
+
     /**
      * Initialise the dialogue.
      *
@@ -103,14 +113,21 @@ Y.extend(DIALOGUE, Y.Panel, {
         }
         // Recalculate the zIndex every time the modal is altered.
         this.on('maskShow', this.applyZIndex);
-        // We must show - after the dialogue has been positioned,
-        // either by centerDialogue or makeResonsive. This is because the show() will trigger
-        // a focus on the dialogue, which will scroll the page. If the dialogue has not
-        // been positioned it will scroll back to the top of the page.
-        if (this.get('visible')) {
-            this.show();
-            this.keyDelegation();
-        }
+
+        this.on('maskShow', function() {
+            // When the mask shows, position the boundingBox at the top-left of the window such that when it is
+            // focused, the position does not change.
+            var w = Y.one(Y.config.win),
+                bb = this.get('boundingBox');
+
+            if (!this.get('center')) {
+                this._originalPosition = bb.getXY();
+            }
+            bb.setStyles({
+                top: w.get('scrollTop'),
+                left: w.get('scrollLeft')
+            });
+        }, this);
 
         // Remove the dialogue from the DOM when it is destroyed.
         this.after('destroyedChange', function(){
@@ -296,7 +313,7 @@ Y.extend(DIALOGUE, Y.Panel, {
                Math.floor(Y.one(document.body).get('winWidth')) < this.get('responsiveWidth');
     },
 
-    show : function() {
+    show: function() {
         var result = null,
             header = this.headerNode,
             content = this.bodyNode,
@@ -305,6 +322,11 @@ Y.extend(DIALOGUE, Y.Panel, {
 
         result = DIALOGUE.superclass.show.call(this);
 
+        if (!this.get('center') && this._originalPosition) {
+            // Restore the dialogue position to it's location before it was moved at show time.
+            this.get('boundingBox').setXY(this._originalPosition);
+        }
+
         // Lock scroll if the plugin is present.
         if (this.lockScroll) {
             // We need to force the scroll locking for full screen dialogues, even if they have a small vertical size to