--- a/webaudio/specification.html	Thu Apr 18 17:16:38 2013 -0400
+++ b/webaudio/specification.html	Thu Apr 18 18:22:34 2013 -0400
@@ -5292,7 +5292,7 @@
     DelayNode createDelayNode(optional double maxDelayTime = 1.0);
 
     // Same as createScriptProcessor()
-    ScriptProcessorNode createJavaScriptNode(unsigned long bufferSize,
+    ScriptProcessorNode createJavaScriptNode(optional unsigned long bufferSize = 0,
                                              optional unsigned long numberOfInputChannels = 2,
                                              optional unsigned long numberOfOutputChannels = 2);
 };