[mhodgson]

I'm fairly certain this doesn't work with current versions of Chrome. The experimental support for the -sass-debug-info that this method uses was removed in favor of real sourcemaps landing in sass version 3.3.0.

You can try using the alpha release of sass 3.3.0 to get real sourcemaps but I haven't had any luck getting it to work with rails. It also will not work with compass 0.13.alpha, you have to downgrade to 0.12.2.

[guybrush0]

It's solid on the Chrome stable and beta channels, but possibly not on Canary. I'd hope they'll wait until sass 3.3 is released before removing the debug-info support from more stable channels.