Processes & Task Dashboard always loading

In https://github.com/droolsjbpm/dashboard-builder/blob/master/modules/dashboard-ui/dashboard-ui-chartlibs/dashboard-ui-google/src/main/java/org/jboss/dashboard/displayer/google/GoogleDisplayerRenderer.java#L45, we use js code of google.
but ,in China, we can not visit google,. so when we select Processes & Task Dashboard,
Request URL:http://www.google.com/jsapi?callback=__gwt_AjaxLoader_onLoad getting failed.and the page alwasy loading