From affe54a4e91e979f65e412812b92b390b9c0c127 Mon Sep 17 00:00:00 2001
From: Taco de Wolff <tacodewolff@gmail.com>
Date: Mon, 13 Apr 2020 19:50:37 -0400
Subject: [PATCH] Remove whitespace around @import url(...), fixes #296

---
 css/css.go      | 10 +++++++++-
 css/css_test.go |  2 ++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/css/css.go b/css/css.go
index 8555ddc4ce..d89c477e0f 100644
--- a/css/css.go
+++ b/css/css.go
@@ -185,7 +185,15 @@ func (c *cssMinifier) minifyGrammar() error {
 			if ToHash(data[1:]) == Import && len(values) == 2 && values[1].TokenType == css.URLToken {
 				url := values[1].Data
 				if url[4] != '"' && url[4] != '\'' {
-					url = url[3:]
+					a := 4
+					for parse.IsWhitespace(url[a]) || parse.IsNewline(url[a]) {
+						a++
+					}
+					b := len(url) - 2
+					for parse.IsWhitespace(url[b]) || parse.IsNewline(url[b]) {
+						b--
+					}
+					url = url[a-1 : b+2]
 					url[0] = '"'
 					url[len(url)-1] = '"'
 				} else {
diff --git a/css/css_test.go b/css/css_test.go
index 5d99384496..b076c8d4fa 100644
--- a/css/css_test.go
+++ b/css/css_test.go
@@ -27,6 +27,8 @@ func TestCSS(t *testing.T) {
 		{"@import 'file';", "@import 'file'"},
 		{"@import url('file');", "@import 'file'"},
 		{"@import url(//url);", `@import "//url"`},
+		{"@import url(\n//url\n);", `@import "//url"`},
+		{"@import url();", `@import ""`},
 		{"@font-face { x:y; }", "@font-face{x:y}"},
 
 		{"input[type=\"radio\"]{x:y}", "input[type=radio]{x:y}"},