From 12c7dedeb9ba4c9c6f34fb668f90bd230c046ec5 Mon Sep 17 00:00:00 2001
From: Artem S Vybornov <vybornov@gmail.com>
Date: Wed, 25 Mar 2015 13:52:36 +0300
Subject: [PATCH] Fix #303: better options handling

---
 tasks/lib/uglify.js | 9 +++++++++
 tasks/uglify.js     | 5 -----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/tasks/lib/uglify.js b/tasks/lib/uglify.js
index 483bbd6f..9de436d7 100644
--- a/tasks/lib/uglify.js
+++ b/tasks/lib/uglify.js
@@ -83,6 +83,9 @@ exports.init = function(grunt) {
       if (options.compress.warnings !== true) {
         options.compress.warnings = false;
       }
+      if (options.screwIE8) {
+        options.compress.screw_ie8 = true;
+      }
       var compressor = UglifyJS.Compressor(options.compress);
       topLevel = topLevel.transform(compressor);
 
@@ -91,6 +94,12 @@ exports.init = function(grunt) {
     }
 
     if (options.mangle !== false) {
+      if (options.mangle === true) {
+        options.mangle = {};
+      }
+      if (options.screwIE8) {
+        options.mangle.screw_ie8 = true;
+      }
       // disabled due to:
       //   1) preserve stable name mangling
       //   2) it increases gzipped file size, see https://github.com/mishoo/UglifyJS2#mangler-options
diff --git a/tasks/uglify.js b/tasks/uglify.js
index 019144cb..1e841879 100644
--- a/tasks/uglify.js
+++ b/tasks/uglify.js
@@ -131,11 +131,6 @@ module.exports = function(grunt) {
         options.destToSourceMap = destToSourceMapPath + sourceMapBasename;
       }
 
-      if (options.screwIE8) {
-        if (options.mangle) { options.mangle.screw_ie8 = true; }
-        if (options.compress) { options.compress.screw_ie8 = true; }
-      }
-
       // Minify files, warn and fail on error.
       var result;
       try {