paulnicholson/coffee-filter — pull request #7 by exviva (2012-06-27 14:13:41+00:00)
Title: Add a warning about using string interpolation

We've noticed that several `:coffeescript` blocks cost us a lot of precious response time in production. After digging into the issue, we've noticed that HAML won't cache the result of `Coffeescript.compile(text)` if the block contains Ruby string interpolation.

Hopefully, this note will warn others.