class Sprockets::UglifierCompressor

def evaluate(context, locals, &block)
  # Feature detect Uglifier 2.0 option support
  if Uglifier::DEFAULTS[:copyright]
    # Uglifier < 2.x
    Uglifier.new(:copyright => false).compile(data)
  else
    # Uglifier >= 2.x
    Uglifier.new(:comments => :none).compile(data)
  end
end