Fix resolved URLs on Windows.

marcopennekamp · marcopennekamp · commit 338e381359af · 2018-06-28T21:40:51.000+02:00
Previously, when URLs were processed, URLs such as 'a\b\c.png' were generated, despite the backslash not being a valid URL separator.
With this change, the escape function also replaces backslash separators in URLs with forward slashes.
diff --git a/lib/url/escape.js b/lib/url/escape.js
@@ -6,6 +6,9 @@ module.exports = function escape(url) {
     if (/^['"].*['"]$/.test(url)) {
         url = url.slice(1, -1);
     }
+
+    url = url.replace(/\\/g, '/');
+
     // Should url be wrapped?
     // See https://drafts.csswg.org/css-values-3/#urls
     if (/["'() \t\n]/.test(url)) {
