Check links failing on font URLs

[SlightlyCircuitous]

As seen in my last PR, Check links fails because it tries to follow the font URLs, which are all invalid. As far as I can tell, the fonts work fine, so them failing the check is more confusing then helpful. Should Check links be changed to ignore them or am I mistaken and they are actually broken and need to be fixed?

[SlightlyCircuitous]

Update: I think at least some of them are actually failing for real, but not all of them?

Screenshot from Inspector console