Hi,

we've got a Problem. In our web application we use a frame to display some 
pdf with the browsers pdf viewer.

If you open the site with the frame the request for the pdf is called 
twice. If you leave the page the request is send again. As you can see in 
the picture below.

<https://lh3.googleusercontent.com/-hBHo_YGSefM/Ve7D9n_6SBI/AAAAAAAAAAo/LLvPXpbuebI/s1600/requests.PNG>
In Chrome this isn't a problem. But if you do this in Firefox you get an 
new tab with a black page.

Here is our code to show the pdf: 

 
 @Override
  protected void bindAuskunfteiGesamtObject()
  {
    if (getPageModel().getAuskunfteiGesamtObject().getExpertise().
getFullExpertise().trim().length() >0)
    {
      getView().getRatingHeader().setExperise(
          getPageModel().getAuskunfteiGesamtObject().getExpertise().
getFullExpertise() );
    }
    getView().getDisclosurePanelPdf().setOpen( false );


    getView().getDisclosurePanelPdf().setUrl( getPdfUrl() );
    getView().getDisclosurePanelPdf().setOpen( true );
  }

But this method isn't called twice. So I have no idea why the request is 
send twice. 

I hope you can help me.

Thanks in advance

Dominic 

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