This code leads to compilation error:
var sass = new Sass();
sass.importer(function (request, done) {
console.log(request);
done({content: ''});
});
While this works just fine:
var sass = new Sass();
sass.importer(function (request, done) {
console.log(request);
done({content: '.some {}'});
});
I think that empty string should work too