Printing does not work under specific circumstances with Tor Browser

Printing freezes the browser (all tabs) and does not print under the following circumstances:

1. Tor Browser 7.0.1 (latest)
2. PDFCreator 2.5 (latest as of yesterday)
3. Printing an Alphabay page

I found that printing other pages or using a pre 7.0 Tor Browser version makes the problem go away. I therefore think the bug lies with Tor Browser and not with PDFCreator.

So this URL can be printed: https://blockchainbdgpzk.onion/ (blockchain.info)

And this can not: http://pwoah7foa6au2pul.onion/login.php (Alphabay login. This page does not show any products or any objectionable content so it is safe to visit).

I'll see if I can attach screenshots.

Trac:
Username: Td8F