fix(sourcemaps): use abs paths & remove sourceRoot

lib/loader.js

@@ -2,7 +2,6 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-var path = require("path");
 var loaderUtils = require("loader-utils");
 var processCss = require("./processCss");
 var getImportPrefix = require("./getImportPrefix");
@@ -97,13 +96,9 @@ module.exports = function(content, map) {
 			map = result.map;
 			if(map.sources) {
 				map.sources = map.sources.map(function(source) {
-					source = source.split("!").pop();
-					var p = path.relative(query.context || this.options.context, source).replace(/\\/g, "/");
-					if(p.indexOf("../") !== 0)
-						p = "./" + p;
-					return "/" + p;
+					return source.split("!").pop();
 				}, this);
-				map.sourceRoot = "webpack://";
+				map.sourceRoot = "";
 			}
 			map.file = map.file.split("!").pop();
 			map = JSON.stringify(map);

test/sourceMapTest.js

@@ -21,8 +21,8 @@ describe("source maps", function() {
 			file: 'test.css',
 			mappings: 'AAAA,SAAS,SAAS,EAAE',
 			names: [],
-			sourceRoot: 'webpack://',
-			sources: [ '/./folder/test.css' ],
+			sourceRoot: '',
+			sources: [ '/folder/test.css' ],
 			sourcesContent: [ '.class { a: b c d; }' ],
 			version: 3
 		}]
@@ -38,8 +38,8 @@ describe("source maps", function() {
 			file: 'test.css',
 			mappings: 'AAAA,SAAS,SAAS,EAAE',
 			names: [],
-			sourceRoot: 'webpack://',
-			sources: [ '/../../folder/test.css' ],
+			sourceRoot: '',
+			sources: [ '/folder/test.css' ],
 			sourcesContent: [ '.class { a: b c d; }' ],
 			version: 3
 		}]
@@ -55,8 +55,8 @@ describe("source maps", function() {
 			file: 'test.scss',
 			mappings: 'AAAA,SAAS,SAAS,EAAE',
 			names: [],
-			sourceRoot: 'webpack://',
-			sources: [ '/./folder/test.scss' ],
+			sourceRoot: '',
+			sources: [ '/folder/test.scss' ],
 			sourcesContent: [ '.class { a: b c d; }' ],
 			version: 3
 		}]