SmartGWT Portalcan't be displayed in Firefox

Hello,

I am evaluating the SmartGWT Portal (one of the portlet contains a a gwt chart (take from clientsidegchart.googlecode.com).

I can see the result on my local machine on each webbrowser (Firefox, Chrome, IE). However when deploying to the webhoster I am using, the whole website can’t be displayed in Firefox.

Google Chrome and IE still works fine. What’s the reason that the SmartGWT portal can’t be shown in Firefox ?

I set the permission to 755 to all files and (sub)directories.

Details of the versions involved :

SmartGWT 2.2 (2.4 not compatible with GWT Designer)

I just added two lines of code in the Portal sample code :

 public void onModuleLoad() {
 
    final PortalLayout portalLayout = new PortalLayout(1);  
   
    portalLayout.setWidth100();  
    portalLayout.setHeight100();  

   // MonthlyChart derived from GChart 
   MonthlyChart monat= new MonthlyChart();
  
   Portlet portlet1 = new Portlet()
   portlet1.setTitle("monthly");  
   portlet1.addChild(monat);

   portalLayout.addPortlet(portlet1);  

  VLayout vLayout = new VLayout(15);
 
//the rest of the code is same as in SimplePortalSample.java