Preview disappears after selecting printer

[molfar]

When I click a link, the print dialog appears. It shows me preview of the page. But after selecting or changing printer, this preview disappears and showing only blank page.
I use latest version of the script, 1.5.1. Iframe is on. Also tried the same action on you demo page - have the equivalent bug there.
iphone 6s plus, 5s, ipad pro 12.9. ios 10.2.1

[CitizenOfRome]

That is rather weird - does it work any better with iframe: false ? (4th element in the demo)

[molfar]

The same behavior with 4th demo example. Preview disappears a after selecting printer through ios dialog.

[molfar]

This script http://printjs.crabbly.com/ has no such bug with preview. ios device shows preview image even after selecting printer. May be you could discover it and get some ideas.