With embedjnlp set to "true" insde fx ant deploy task , we used to embed the JNLP descriptor into the web page. But that's not happening anymore. I can see the issue with latest scrum build too

Try to generate html/jnlp/jars using fx ant task and make sure that under deploy task embedJNLP="true" e.g.
      <fx:deploy width="400" height="400" outdir="${dist.dir}" includeDT="true" embedJNLP="true" outfile="${filename}">

With latest bits as seen in html below, attribute jnlp_content contains empty string ""
http://sqeweb.us.oracle.com/deployment2/jitu/plug-bug/javafx/latest/signedJars/html/ProxyTest.html

This is a regression as compare to previous builds