CSSO messes with font icons

[noum]

Before:

.icon-shopping-cart:before {
	content: "\e72f"
}

After CSSO:
.icon-shopping-cart:before{content:""}
Is there a setting I need to activate to prevent this?

[lahmatiy]

Does it break CSS or are you worried about changes in the string? String are now decoding on parsing, so strings should be equivalent (that's not a string with a whitespace but with invisible char looks like a space).

[noum]

I just assumed it didn't work so sorry for that.
But still I wish one should have the choice to disable that option to change the icon code manually without minifying everything again.
You can close the issue now.