Spawn not working in other PDF viewers

I used the following  when a box is checked show a template  or unchecked to hide the template 

if(event.target.value!="Off")
{this.getTemplate("CED" ).spawn(1, false, false);}
else
{this.deletePages(1);}

This works perfectly except for that the document has to be viewed in an adobe application it seems.  If it opend in chrome, firefox, edge or pther pdf viewer it does not work. Is there a way to make this work with other apps.