I finally got it work. It was much more simple and did not even involve MIME. The trick was to modify the image tags in the working HTML to include the base64 encoded image so that the src tag could use this format (here shown with a gif as example): src=”data:image/gif;base64,<base64 encoded image>” I already … Read more
Oliver, add the client-side JS call XSP.allowSubmit() to your button in order to allow new submits after pressing the button: <xp:button id=”button5″ styleClass=”btn btn-sm printbutton” style=”display:none”> <i class=”fa fa-print”></i>   <xp:text> <xp:this.value><![CDATA[#{javascript:”Nach MS Word exportieren”}]]></xp:this.value> </xp:text> <xp:eventHandler event=”onclick” submit=”true” refreshMode=”complete”> <xp:this.action> <xp:actionGroup> <xp_1:generateDocument documentId=”wordprint” loaded=”true”> </xp_1:generateDocument> </xp:actionGroup> </xp:this.action> <xp:this.script><![CDATA[XSP.allowSubmit()]]></xp:this.script> </xp:eventHandler> </xp:button>
Philippe Riand explaned this by email: This class cast happens because the same class had been loaded twice by 2 different class loaders. Thus, from a Java standpoint, they are different and the cast fails. Now, each XPages application is having its own classloader. But this class loader is discarded each time a design change … Read more