Execute the attached test with Chrome/Safari. It fails with the following message, in IE and FF runs fine: Overall Result: Fail ------------------------------------------------------------ '12/5/2013 2:26:39 PM' - Using .Net Runtime version: '4.0.30319.18052' for test execution. Build version is '2013.1.1120.0'. '12/5/2013 2:26:39 PM' - Starting execution.... ------------------------------------------------------------ ------------------------------------------------------------ '12/5/2013 2:26:41 PM' - Using 'Safari' version '5.1.7' as default browser. '12/5/2013 2:26:43 PM' - 'Pass' : 1. Navigate to : 'http://demos.telerik.com/aspnet-ajax/window/examples/overview/defaultcs.aspx' '12/5/2013 2:27:25 PM' - 'Fail' : 2. Click 'TelerikImage' ------------------------------------------------------------ Failure Information: ~~~~~~~~~~~~~~~ Unable to find the target host (Browser/SilverlightApp) to locate an element. Failure: ArtOfTest.WebAii.Exceptions.ExecuteCommandException: ExecuteCommand failed! BrowserCommand (Type:'Information',Info:'DocumentMarkup',Action:'NotSet',Target:'null',Data:'',ClientId:'f4dfccc4-f2e8-40c0-b3fb-c7e4558c14d1',HasFrames:'False',FramesInfo:'',TargetFrameIndex:'0',InError:'False',Response:'') InnerException: System.TimeoutException: Timed out waiting for command to be handled at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId, Int32 timeout) at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId) at ArtOfTest.WebAii.Core.Browser.ExecuteCommandInternal(BrowserCommand request) ---> System.TimeoutException: Timed out waiting for command to be handled at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId, Int32 timeout) at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId) at ArtOfTest.WebAii.Core.Browser.ExecuteCommandInternal(BrowserCommand request) --- End of inner exception stack trace --- at ArtOfTest.WebAii.Core.Browser.ExecuteCommandInternal(BrowserCommand request) at ArtOfTest.WebAii.Core.Browser.ExecuteCommand(BrowserCommand request, Boolean performDomRefresh, Boolean waitUntilReady) at ArtOfTest.WebAii.Core.Browser.RefreshDomTree() at ArtOfTest.WebAii.Core.FramesCollection.EnsureDomLoaded(Browser browser) at ArtOfTest.WebAii.Core.FramesCollection.get_Item(FrameInfo frameInfo) at ArtOfTest.WebAii.Design.Execution.ExecutionUtils.GetFrameBrowserInstance(Browser topBrowser, FrameInfo frame, Int32 waitTimeout, String& stringError) InnerException: System.Exception: Unable to find the target host (Browser/SilverlightApp) to locate an element. Failure: ArtOfTest.WebAii.Exceptions.ExecuteCommandException: ExecuteCommand failed! BrowserCommand (Type:'Information',Info:'DocumentMarkup',Action:'NotSet',Target:'null',Data:'',ClientId:'f4dfccc4-f2e8-40c0-b3fb-c7e4558c14d1',HasFrames:'False',FramesInfo:'',TargetFrameIndex:'0',InError:'False',Response:'') InnerException: System.TimeoutException: Timed out waiting for command to be handled at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId, Int32 timeout) at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId) at ArtOfTest.WebAii.Core.Browser.ExecuteCommandInternal(BrowserCommand request) ---> System.TimeoutException: Timed out waiting for command to be handled at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId, Int32 timeout) at ArtOfTest.WebAii.Messaging.Process.BrowserHttpRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId) at ArtOfTest.WebAii.Core.Browser.ExecuteCommandInternal(BrowserCommand request) --- End of inner exception stack trace --- at ArtOfTest.WebAii.Core.Browser.ExecuteCommandInternal(BrowserCommand request) at ArtOfTest.WebAii.Core.Browser.ExecuteCommand(BrowserCommand request, Boolean performDomRefresh, Boolean waitUntilReady) at ArtOfTest.WebAii.Core.Browser.RefreshDomTree() at ArtOfTest.WebAii.Core.FramesCollection.EnsureDomLoaded(Browser browser) at ArtOfTest.WebAii.Core.FramesCollection.get_Item(FrameInfo frameInfo) at ArtOfTest.WebAii.Design.Execution.ExecutionUtils.GetFrameBrowserInstance(Browser topBrowser, FrameInfo frame, Int32 waitTimeout, String& stringError) at ArtOfTest.WebAii.Design.Execution.ExecutionUtils.WaitForAllElements(IAutomationHost host, AutomationDescriptor descriptor, Int32 timeout) at ArtOfTest.WebAii.Design.Execution.ExecutionEngine.ExecuteStep(Int32 order) ------------------------------------------------------------ '12/5/2013 2:27:25 PM' - Detected a failure. Step is marked 'ContinueOnFailure=False' aborting test execution. ------------------------------------------------------------ '12/5/2013 2:27:25 PM' - Overall Result: Fail '12/5/2013 2:27:25 PM' - Duration: [0 min: 43 sec: 641 msec] ------------------------------------------------------------ '12/5/2013 2:27:45 PM' - Test completed!