opal/browser/support.rb in opal-browser-0.3.3 vs opal/browser/support.rb in opal-browser-0.3.4

@@ -73,20 +73,18 @@
         defined?(`window.postMessage`)
 
       when 'Window.send (Asynchronous)'
         if defined?(`window.postMessage`) && !defined?(`window.importScripts`)
           %x{
-            (function() {
-              var ok  = true,
-                  old = window.onmessage;
+            var ok  = true,
+                old = window.onmessage;
 
-              window.onmessage = function() { ok = false; };
-              window.postMessage("", "*")
-              window.onmessage = old;
+            window.onmessage = function() { ok = false; };
+            window.postMessage("", "*")
+            window.onmessage = old;
 
-              return ok;
-            })()
+            return ok;
           }
         end
 
       when 'Window.send (Synchronous)'
         !supports?('Window.send (Asynchronous)')
@@ -106,58 +104,48 @@
       when 'Window.pageOffset'
         defined?(`window.pageXOffset`)
 
       when 'Attr.isId'
         %x{
-          (function() {
-            var div = document.createElement('div');
-                div.setAttribute('id', 'xxxxxxxxxxxxx');
+          var div = document.createElement('div');
+              div.setAttribute('id', 'xxxxxxxxxxxxx');
 
-            return typeof(div.attributes['id'].isId) !== "undefined";
-          })()
+          return typeof(div.attributes['id'].isId) !== "undefined";
         }
 
       when 'Element.addBehavior'
         defined?(`document.documentElement.addBehavior`)
 
       when 'Element.className'
         %x{
-          (function() {
-            var div = document.createElement("div");
-                div.setAttribute('className', 'x');
+          var div = document.createElement("div");
+              div.setAttribute('className', 'x');
 
-            return div.className === 'x';
-          })()
+          return div.className === 'x';
         }
 
       when 'Element.class'
         %x{
-          (function() {
-            var div = document.createElement("div");
-                div.setAttribute('class', 'x');
+          var div = document.createElement("div");
+              div.setAttribute('class', 'x');
 
-            return div.className === 'x';
-          })()
+          return div.className === 'x';
         }
 
       when 'Element.for'
         %x{
-          (function() {
-            var label = document.createElement("label");
-                label.setAttribute('for', 'x');
+          var label = document.createElement("label");
+              label.setAttribute('for', 'x');
 
-            return label.htmlFor === 'x';
-          })()
+          return label.htmlFor === 'x';
         }
 
       when 'Element.htmlFor'
         %x{
-          (function() {
-            var label = document.createElement("label");
-                label.setAttribute('htmlFor', 'x');
+          var label = document.createElement("label");
+              label.setAttribute('htmlFor', 'x');
 
-            return label.htmlFor === 'x';
-          })()
+          return label.htmlFor === 'x';
         }
 
       when 'Element.clientSize'
         defined?(`document.documentElement.clientHeight`)