CSS: KeepCSS2 (for IE11) doesn't use initial for background-color, fixes

#394
tdewolff · Apr 2, 2021 · de33a3b · de33a3b
1 parent 42851b8
commit de33a3b
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Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/css/css.go b/css/css.go
@@ -1096,9 +1096,11 @@ func (c *cssMinifier) minifyProperty(prop Hash, values []Token) []Token {
 		values[0] = minifyColor(values[0])
 	case Background_Color:
 		values[0] = minifyColor(values[0])
-		if values[0].Ident == Transparent {
-			values[0].Data = initialBytes
-			values[0].Ident = Initial
+		if !c.o.KeepCSS2 {
+			if values[0].Ident == Transparent {
+				values[0].Data = initialBytes
+				values[0].Ident = Initial
+			}
 		}
 	case Border_Color:
 		sameValues := true

diff --git a/css/css_test.go b/css/css_test.go
@@ -435,6 +435,7 @@ func TestCSSKeepCSS2(t *testing.T) {
 		{`margin:5000%`, `margin:5000%`},
 		{`margin:5000em`, `margin:5000em`},
 		{`color:transparent`, `color:transparent`},
+		{`background-color:transparent`, `background-color:transparent`},
 	}
 
 	m := minify.New()