Pop-up error displayed when session expires

A pop-up with the following error is displayed when the session expires:

Uncaught exception: com.google.gwt.core.client.JavaScriptException: (NS_ERROR_UNEXPECTED): Unexpected error
QueryInterface: function QueryInterface()

{ [native code] }
result: 2147549183
filename: https://connect.nuxeo.com/nuxeo/site/studio/ide/studio/sockjs-0.2.1.min.js
lineNumber: 27
columnNumber: 0
inner: null
data: null
initialize: function initialize() { [native code] }