opal/browser/support.rb in opal-browser-0.2.0 vs opal/browser/support.rb in opal-browser-0.3.0

@@ -96,10 +96,13 @@
         defined?(`window.outerHeight`)
 
       when 'Window.scroll'
         defined?(`document.documentElement.scrollLeft`)
 
+      when 'Window.scrollBy'
+        defined?(`document.documentElement.scrollBy`)
+
       when 'Window.pageOffset'
         defined?(`window.pageXOffset`)
 
       when 'Attr.isId'
         %x{
@@ -180,11 +183,11 @@
       when 'Event.constructor'
         begin
           `new MouseEvent("click")`
 
           true
-        rescue
+        rescue StandardError, JS::Error
           false
         end
 
       when 'Event.create'
         defined?(`document.createEvent`)
@@ -267,9 +270,18 @@
       when 'Animation.cancelRequest (Opera)'
         defined?(`window.oCancelRequestAnimationFrame`)
 
       when 'Animation.cancelRequest (Chrome)', 'Animation.cancelRequest (Safari)'
         defined?(`window.webkitCancelRequestAnimationFrame`)
+
+      when 'Audio'
+        defined?(`window.AudioContext`)
+
+      when 'Audio (Safari)', 'Audio (Chrome)'
+        defined?(`window.webkitAudioContext`)
+      
+      when 'Custom Elements'
+        defined?(`window.customElements`)
     end
 
     `#@support[#{feature}] = #{support}`
   end