The following error appears in the Chrome console:
Uncaught SyntaxError: Unexpected ILLEGAL Token
At the beginning of my concatenated CSS file:
@import url("http://fonts.googleapis.com/css?family=Raleway:300,400,600")
This line ends by itself, and it is this line that throws the error:

I looked around and it seems that this error should apply to invisible characters breaking into the code. Unfortunately, in my case, this does not seem to be true. I even deleted this part of the code and rewrote it manually to make sure - no difference.
I use Stylus (with gulp) and the resulting compiler naturally causes an error - maybe this is a problem with gulp-stylus? I looked at the compiled code and cannot find any invisible characters there ...
Anything else throw this error?
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