From: Ingo Struck <git@ingostruck.de>
Date: Thu, 27 Aug 2015 17:38:33 +0000 (+0200)
Subject: allow for anonymous map generation using string type check
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=3a5f35484606914b54fb80540f51b37fae20282b;p=UglifyJS.git

allow for anonymous map generation using string type check
---

diff --git a/tools/node.js b/tools/node.js
index 29d5632d..eba2bc1d 100644
--- a/tools/node.js
+++ b/tools/node.js
@@ -131,7 +131,7 @@ exports.minify = function(files, options) {
     var stream = UglifyJS.OutputStream(output);
     toplevel.print(stream);
 
-    if(options.outSourceMap){
+    if (options.outSourceMap && "string" === typeof options.outSourceMap) {
         stream += "\n//# sourceMappingURL=" + options.outSourceMap;
     }