fix(unassertify): copy sourceRoot even if it is an empty string

unassert-js · Dec 15, 2015 · d687a4b · d687a4b
1 parent d912420
commit d687a4b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/index.js b/index.js
@@ -29,7 +29,7 @@ function mergeSourceMap (incomingSourceMap, outgoingSourceMap) {
 }
 
 function copyPropertyIfExists (name, from, to) {
-    if (from[name]) {
+    if (from.hasOwnProperty(name)) {
         to.setProperty(name, from[name]);
     }
 }