JavaScript disallowed on certified form?

I have a dynamic form that is submitted using an HTTP Submit Button (pdf). The server responds with an FDF payload of JavaScript that gets executed immediately. This works fine when the form is not certified. However, once the form is certified (non visible), instead of running the JavaScript on submit, a popup says "operation is not permitted". Is there a way to return JavaScript to execute within a certified document? Using Designer ES4 and Adobe Acrobat Pro XI.

Sample FDF:

 %FDF-1.2
1 0 obj <<  
/FDF <<  
/JavaScript << /After ( JavaScript Goes Here ) >>>> >>  
endobj 
trailer <<  
/Root 1 0 R >>  
%%EOF