@charset stripped in :compressed output

Yesterday I updated a project from 3.3 to 3.4 (specifically, 3.4.5), and it seems that @charset "utf-8"; is being stripped from files compiled using :compressed style. I do not believe this is the intended result.

Input

body {
  font-family: "漢字仮名交じり文", sans-serif;
}

Output (default)

sass input.scss output.css

@charset "UTF-8";
body {
  font-family: "漢字仮名交じり文", sans-serif; }

Output (compressed)

sass --style=compressed input.scss output.css

body{font-family:"漢字仮名交じり文", sans-serif}

[atflick]

One buggy thing that I found on my app, which may just be a Chrome issue, but if you right click > inspect an element, then close the dev tools and navigate to another page, my icon font in my CSS file no longer gets properly decoded:

should be:

Manually adding the @charset "utf-8"; in the compiled css file prevents that. Wish I could manually add this in my scss files, but it gets stripped.

Likely a Chrome issue, but still, don’t want our QA team stumbling on this every so often

[kapooostin]

But it causes all kinds of trouble when you later try to inline styles, for example when compiling html for email. BOM gets inserted in the middle of resulting email. Some clients ignore it, but Apple Mail shows weird question marks.