1 files changed, 4 insertions, 1 deletions
diff --git a/node_modules/pako/lib/utils/common.js b/node_modules/pako/lib/utils/common.js
index 1e159fecb..58be4beb4 100644
--- a/node_modules/pako/lib/utils/common.js
+++ b/node_modules/pako/lib/utils/common.js
@@ -5,6 +5,9 @@ var TYPED_OK =  (typeof Uint8Array !== 'undefined') &&
                 (typeof Uint16Array !== 'undefined') &&
                 (typeof Int32Array !== 'undefined');
 
+function _has(obj, key) {
+  return Object.prototype.hasOwnProperty.call(obj, key);
+}
 
 exports.assign = function (obj /*from1, from2, from3, ...*/) {
   var sources = Array.prototype.slice.call(arguments, 1);
@@ -17,7 +20,7 @@ exports.assign = function (obj /*from1, from2, from3, ...*/) {
     }
 
     for (var p in source) {
-      if (source.hasOwnProperty(p)) {
+      if (_has(source, p)) {
         obj[p] = source[p];
       }
     }