dom/event/message: fix #data and #source instanceof checks

opal · Jan 26, 2014 · e8dbf13 · e8dbf13
1 parent 5150f5a
commit e8dbf13
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/opal/browser/dom/event/message.rb b/opal/browser/dom/event/message.rb
@@ -39,10 +39,10 @@ def self.construct(name, desc)
 
   def data
     %x{
-      if (#@native.data instanceof ArrayBuffer) {
+      if (window.ArrayBuffer && #@native.data instanceof ArrayBuffer) {
         return #{Buffer.new(`#@native.data`)};
       }
-      else if (#@native.data instanceof Blob) {
+      else if (window.Blob && #@native.data instanceof Blob) {
         return #{Blob.new(`#@native.data`)};
       }
       else {
@@ -57,7 +57,7 @@ def source
     %x{
       var source = #@native.source;
 
-      if (source instanceof window.Window) {
+      if (window.Window && source instanceof window.Window) {
         return #{Window.new(`source`)};
       }
       else {