Github Font Preview - Fails to render font preview on first-load

[innateessence]

First load:

After page refresh:

[ACH1980]

As written in #146 this seems to be the problem mentioned here: https://stackoverflow.com/questions/17862394/my-userscript-only-works-when-the-page-is-refreshed-or-on-iframes-not-the-main
The page doesn't get loaded when you click a link, instead it loads only the contents via Ajax, which is good in point of bandwidth, but bad for the script that only executes on page load.

Possible solution could be to regularly execute the script without having the page to reload, but this could be overkill. Maybe the devs have a better idea...