paypro: fix uncatchable error in browser paypro.

lib/browser/PayPro.js

@@ -141,6 +141,12 @@ PayPro.prototype.x509Verify = function(returnTrust) {
     // var npem = self._DERtoPEM(nder, 'CERTIFICATE');
     var npem = KJUR.asn1.ASN1Util.getPEMStringFromHex(nder, 'CERTIFICATE');
 
+    //
+    // Get Next Certificate:
+    //
+    var ndata = new Buffer(nder, 'hex');
+    var nc = rfc3280.Certificate.decode(ndata, 'der');
+
     //
     // Get Public Key from next certificate (via KJUR because it's a mess):
     //