Preserve escaped content

[IgnacioHR]

Hello,

If I've the input file input.scss

.test::before {
    content: "\ea01";
}

and I run sass input.scss the output obtained is:

.test::before {
  content: ;
}

I want it to be exactly the same escaped string without converting the escaped character into the utf-8 character as this is generating undesired side effects as you can see in the attached image capture

I can't find a proper way to handle this situation via options or anything.

Any help or bug fix will be appreciated Best

[jathak]

Duplicate of #568.