diff --git a/test/sourceMapTest.js b/test/sourceMapTest.js
index 39401e95..23ac5dc8 100644
--- a/test/sourceMapTest.js
+++ b/test/sourceMapTest.js
@@ -44,6 +44,40 @@ describe("source maps", function() {
 			version: 3
 		}]
 	]);
+	testMap("generate sourceMap (1 loader, data url)", ".class { background-image: url(\"data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 42 26' fill='%23007aff'><rect width='4' height='4'/><rect x='8' y='1' width='34' height='2'/><rect y='11' width='4' height='4'/><rect x='8' y='12' width='34' height='2'/><rect y='22' width='4' height='4'/><rect x='8' y='23' width='34' height='2'/></svg>\"); }", undefined, {
+		loaders: [{request: "/path/css-loader"}],
+		options: { context: "/" },
+		resource: "/folder/test.css",
+		request: "/path/css-loader!/folder/test.css",
+		query: "?sourceMap"
+	}, [
+		[1,  ".class { background-image: url(\"data:image/svg+xml;charset=utf-8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 42 26' fill='%23007aff'><rect width='4' height='4'/><rect x='8' y='1' width='34' height='2'/><rect y='11' width='4' height='4'/><rect x='8' y='12' width='34' height='2'/><rect y='22' width='4' height='4'/><rect x='8' y='23' width='34' height='2'/></svg>\"); }", "", {
+			file: 'test.css',
+			mappings: 'AAAA,SAAS,6WAA6W,EAAE',
+			names: [],
+			sourceRoot: '',
+			sources: [ '/folder/test.css' ],
+			sourcesContent: [ '.class { background-image: url("data:image/svg+xml;charset=utf-8,<svg xmlns=\'http://www.w3.org/2000/svg\' viewBox=\'0 0 42 26\' fill=\'%23007aff\'><rect width=\'4\' height=\'4\'/><rect x=\'8\' y=\'1\' width=\'34\' height=\'2\'/><rect y=\'11\' width=\'4\' height=\'4\'/><rect x=\'8\' y=\'12\' width=\'34\' height=\'2\'/><rect y=\'22\' width=\'4\' height=\'4\'/><rect x=\'8\' y=\'23\' width=\'34\' height=\'2\'/></svg>"); }' ],
+			version: 3
+		}]
+	]);
+	testMap("generate sourceMap (1 loader, encoded data url)", ".class { background-image: url(\"data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2042%2026%27%20fill%3D%27%23007aff%27%3E%3Crect%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%271%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3Crect%20y%3D%2711%27%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%2712%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3Crect%20y%3D%2722%27%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%2723%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3C%2Fsvg%3E\"); }", undefined, {
+		loaders: [{request: "/path/css-loader"}],
+		options: { context: "/" },
+		resource: "/folder/test.css",
+		request: "/path/css-loader!/folder/test.css",
+		query: "?sourceMap"
+	}, [
+		[1,  ".class { background-image: url(\"data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2042%2026%27%20fill%3D%27%23007aff%27%3E%3Crect%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%271%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3Crect%20y%3D%2711%27%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%2712%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3Crect%20y%3D%2722%27%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%2723%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3C%2Fsvg%3E\"); }", "", {
+			file: 'test.css',
+			mappings: 'AAAA,SAAS,mmBAAmmB,EAAE',
+			names: [],
+			sourceRoot: '',
+			sources: [ '/folder/test.css' ],
+			sourcesContent: [ '.class { background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2042%2026%27%20fill%3D%27%23007aff%27%3E%3Crect%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%271%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3Crect%20y%3D%2711%27%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%2712%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3Crect%20y%3D%2722%27%20width%3D%274%27%20height%3D%274%27%2F%3E%3Crect%20x%3D%278%27%20y%3D%2723%27%20width%3D%2734%27%20height%3D%272%27%2F%3E%3C%2Fsvg%3E"); }' ],
+			version: 3
+		}]
+	]);
 	testMap("generate sourceMap (2 loaders)", ".class { a: b c d; }", undefined, {
 		loaders: [{request: "/path/css-loader"}, {request: "/path/sass-loader"}],
 		options: { context: "/" },