Work around uglify preserveComments some issue

kpdecker · kpdecker · commit 251ec3b1288f · 2015-11-19T22:54:20.000-06:00
Root cause: gruntjs/grunt-contrib-uglify#366 Fixes #1129
diff --git a/Gruntfile.js b/Gruntfile.js
@@ -125,7 +125,7 @@ module.exports = function(grunt) {
       options: {
         mangle: true,
         compress: true,
-        preserveComments: 'some'
+        preserveComments: /(?:^!|@(?:license|preserve|cc_on))/
       },
       dist: {
         files: [{
