CSS comment before @keyframes triggers Oh-Noes

[birdofblue]

In the HTML environment, whenever a user properly comments their code before a CSS @keyframes rule (or any other at-rule as far as I know) Oh-Noes insists that
You're missing either a } or another property:value; pair following @keyframes foo

See this program for an example.

[pamelafox]

Thank you for the report and the replication example!
The error comes from slowparse, and it looks like this was actually fixed in the slowparse library at some point:
mozilla/slowparse#62
Hm, but it looks like I then upgraded our library:
#204

So I'm not sure why we're still seeing a bug. I will have to investigate further in the future when I have the time to dig deeper.