Hi Wilbur,
Are there any other customizations you've made to WebViewer besides using xdomain.js? For example loading any other JavaScript libraries or anything like that?
Are you able to reproduce the issue from a default uncustomized WebViewer, just making the changes mentioned in the xdomain.js tutorial? When I went through the tutorial, only performing those changes, I wasn't able to reproduce the issue.
Matt Parizeau
Software Developer
PDFTron Systems Inc.