UserAgent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:56.0) Gecko/20100101 Firefox/56.0

Example URL:
https://jsfiddle.net/5md16suh/

Steps to reproduce the problem:
1. Go to this page https://jsfiddle.net/5md16suh/
2. Refresh your browser cache if it's not your first visit
3. Click on the "print" link, or CTRL+P

What is the expected behavior?
In the print page / print preview, the text should be visible, including Greek text.

What went wrong?
The text is missing. Underlines of links are still visible anyway.
If you close the print preview and click try to print again, the text is now visible.

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 62.0.3202.45  Channel: beta
OS Version: Ubuntu 17.04
Flash Version: 27.0.0.159

My analysis :
1. You load the page and Chromium downloads the custom font from Google Fonts
2. When you click on the "print" link, the hidden paragraph is shown (CSS print)
3. The browser detects it contains non-latin characters, then it decides to download the greek-range for the custom font ("unicode-range" property)
4. The download is not yet complete but the preview is already displayed: too soon! The download of the font is blocked.
5. Close the print preview window, the download of the font continues.
6. Try to print, the text is visible because the font is available now.

What is expected:
- Chromium should wait for font download complete before showing the print preview window. Nonetheless, a timeout should be implemented to avoid infinite wait.
 

Deleted: chrome-wrong-print-output.pdf 6.2 KB

chrome-wrong-print-output.pdf 6.2 KB Download

Deleted: chrome-expected-print-output.pdf 17.2 KB

chrome-expected-print-output.pdf 17.2 KB Download