Support a web page's print request in WKWebKit

I have added a WKWebKit view to my app to give access to a third party web page. Most everything is working fine. The web page has a print button that, if pressed while in Safari on an iOS device brings up the iOS print dialog box and successfully send the correct file to the printer.

When I run under WKWebKit, pressing the same button on the web page does not end up invoking the print dialog. I am assuming that I need to catch some messaging from the WebView and make the print workflow happen. I have search and not able to figure out what I need to do to get this to work.