Sass: unicode escape is not preserved in .css file [duplicate]

Answer 1

It is known issue. There is a workaround, which can be found in the @tjbenton post on github:

@charset "UTF-8"

@function unicode($str)
  @return unquote("\"")+unquote(str-insert($str, "\\", 1))+unquote("\"")

.icon-ok
  &:before
    content: unicode("e601")

Output:

.icon-ok:before {
  content: "\e601";
}