Running a specific test as part of a test list in Chrome sometimes gives the following error:

Overall Result: Fail
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'12/15/2015 12:57:51 PM' - Executing test: 'OnBeforeUnload', path: 'UnloadTest\OnBeforeUnload.tstest.'
'12/15/2015 12:57:51 PM' - Using .Net Runtime version: '4.0.30319.34209' for test execution. Build version is '2015.3.1015.0'.
'12/15/2015 12:57:51 PM' - Starting execution....
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'12/15/2015 12:57:53 PM' - Using 'Chrome' version '47.0.2526.106' as default browser. 
'12/15/2015 12:57:54 PM' - 'Pass' : 1. Navigate to : 'http://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_onbeforeunload'
'12/15/2015 12:57:55 PM' - LOG: Unexpected dialog encountered. Taking no action.
'12/15/2015 12:58:15 PM' - 'Fail' : 2. Click 'ClickHereToLink'
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Failure Information: 
~~~~~~~~~~~~~~~
ExecuteCommand failed!
BrowserCommand (Type:'Information',Info:'IsReady',Action:'NotSet',Target:'null',Data:'',ClientId:'fc409eea-3941-4513-acff-4632febe5eea',HasFrames:'False',FramesInfo:'',TargetFrameIndex:'0',InError:'False',Response:'')
InnerException: System.TimeoutException: Timed out waiting for command to be handled
   at ArtOfTest.WebAii.Messaging.Process.BrowserHostsProxyRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId, Int32 timeout)
   at ArtOfTest.WebAii.Messaging.Process.BrowserHostsProxyRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId)
   at ArtOfTest.WebAii.Core.Browser.ExecuteCommandInternal(BrowserCommand request)

InnerException:
ArtOfTest.WebAii.Exceptions.ExecuteCommandException: ExecuteCommand failed!
BrowserCommand (Type:'Information',Info:'IsReady',Action:'NotSet',Target:'null',Data:'',ClientId:'fc409eea-3941-4513-acff-4632febe5eea',HasFrames:'False',FramesInfo:'',TargetFrameIndex:'0',InError:'False',Response:'')
InnerException: System.TimeoutException: Timed out waiting for command to be handled
   at ArtOfTest.WebAii.Messaging.Process.BrowserHostsProxyRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId, Int32 timeout)
   at ArtOfTest.WebAii.Messaging.Process.BrowserHostsProxyRemoted.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.BrowserHostsProxyRemoted.ProcessBrowserRequest(BrowserCommand command, String requestId, Int32 timeout)
   at ArtOfTest.WebAii.Messaging.Process.BrowserHostsProxyRemoted.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.IsReady()
   at ArtOfTest.WebAii.Core.Browser.WaitUntilReady()
   at ArtOfTest.WebAii.Core.Browser.ExecuteCommand(BrowserCommand request, Boolean performDomRefresh, Boolean waitUntilReady)
   at ArtOfTest.WebAii.Core.Browser.ExecuteCommand(BrowserCommand request)
   at ArtOfTest.WebAii.Core.Actions.Click(Element targetElement)
   at ArtOfTest.WebAii.Controls.HtmlControls.HtmlControl.Click()
   at ArtOfTest.WebAii.Controls.HtmlControls.HtmlControl.Click(Boolean isClosing)
   at ArtOfTest.WebAii.Design.IntrinsicTranslators.Descriptors.ClickActionDescriptor.Execute(Browser browser)
   at ArtOfTest.WebAii.Design.Extensibility.HtmlActionDescriptor.Execute(IAutomationHost autoHost)
   at ArtOfTest.WebAii.Design.Execution.ExecutionEngine.ExecuteStep(Int32 order)
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'12/15/2015 12:58:15 PM' - Detected a failure. Step is marked 'ContinueOnFailure=False' aborting test execution.
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'12/15/2015 12:58:15 PM' - Overall Result: Fail
'12/15/2015 12:58:15 PM' - Duration: [0 min: 21 sec: 515 msec]
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'12/15/2015 12:58:58 PM' - Test completed!

Test to reproduce the problem is attached.