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Using URLUtil and BrowserManager to get information about the URL that was used to return the application

<!-- Code from Flex 4 Documentation "Using Adobe Flex 4". This user guide is licensed for use under the terms of the Creative Commons Attribution  Non-Commercial 3.0 License.  This License allows users to copy, distribute, and transmit the user guide for noncommercial  purposes only so long as    (1) proper attribution to Adobe is given as the owner of the user guide; and    (2) any reuse or distribution of the user guide contains a notice that use of the user guide is governed by these terms.  The best way to provide notice is to include the following link.  To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ -->     <!-- deeplinking/UseURLUtil.mxml --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"     xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"     creationComplete="initApp()" height="250" width="500">     <s:layout>         <s:VerticalLayout />     </s:layout>     <fx:Script>                    import mx.utils.URLUtil;          import mx.managers.IBrowserManager;          import mx.managers.BrowserManager;          import mx.events.BrowserChangeEvent;          public var browserManager:IBrowserManager;          private function initApp():void {              browserManager = BrowserManager.getInstance();              browserManager.addEventListener(BrowserChangeEvent.URL_CHANGE, showURLDetails);              browserManager.init("", "Welcome!");          }          [Bindable]          private var fullURL:String;          [Bindable]          private var baseURL:String;          [Bindable]          private var fragment:String;          [Bindable]          private var protocol:String;          [Bindable]          private var port:int;          [Bindable]          private var serverName:String;          [Bindable]          private var isSecure:Boolean;          [Bindable]          private var previousURL:String;          private function showURLDetails(e:BrowserChangeEvent):void {              var url:String = browserManager.url;              baseURL = browserManager.base;              fragment = browserManager.fragment;              previousURL = e.lastURL;              fullURL = mx.utils.URLUtil.getFullURL(url, url);              port = mx.utils.URLUtil.getPort(url);              protocol = mx.utils.URLUtil.getProtocol(url);              serverName = mx.utils.URLUtil.getServerName(url);              isSecure = mx.utils.URLUtil.isHttpsURL(url);          }             </fx:Script>     <mx:Form>         <mx:FormItem label="Full URL:">             <mx:Label text="{fullURL}" />         </mx:FormItem>         <mx:FormItem label="Base URL:">             <mx:Label text="{baseURL}" />         </mx:FormItem>         <mx:FormItem label="Fragment:">             <mx:Label text="{fragment}" />         </mx:FormItem>         <mx:FormItem label="Protocol:">             <mx:Label text="{protocol}" />         </mx:FormItem>         <mx:FormItem label="Port:">             <mx:Label text="{port}" />         </mx:FormItem>         <mx:FormItem label="Server name:">             <mx:Label text="{serverName}" />         </mx:FormItem>         <mx:FormItem label="Is secure?:">             <mx:Label text="{isSecure}" />         </mx:FormItem>         <mx:FormItem label="Previous URL:">             <mx:Label text="{previousURL}" />         </mx:FormItem>     </mx:Form> </s:Application>