Is it possible saving xfdf file in Reader ?

The script for saving xfdf file works fine in Pro but with Reader I get the error:

RangeError: Invalid argument value.
Doc.exportAsXFDF:20:Field Button3:Mouse Up

The config.js file (for Reader):

myTrustedReadFile = app.trustedFunction( function ( oArgs )
{
app.beginPriv();
var rStream = util.readFileIntoStream(oArgs);
var cFile = util.stringFromStream(rStream);
app.endPriv();
return cFile;
});

myTrustedExportXFDF = app.trustedFunction( function ( oArgs )
{
app.beginPriv();
this.exportAsXFDF(true,true,null,oArgs)
app.endPriv();
return true;
});

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

And myTrstedReadFile Works fine (in Pro and Reader)

Thanks for your time.