add debug helper function

js/civicrm_stripe.js

@@ -117,24 +117,29 @@
     $form.submit(function (event) {
       // Don't handle submits generated by the CiviDiscount button.
       if ($form.data('cividiscount-dont-handle') == 1) {
+        debugging('pvjwy');
         return true;
       }
       if (isWebform) {
         var $processorFields = $('.civicrm-enabled[name$="civicrm_1_contribution_1_contribution_payment_processor_id]"]');
 
         if ($('#action').attr('value') == webformPrevious) {
+          debugging('wmlfp');
           return true;
         }
         if ($('#wf-crm-billing-total').length) {
           if ($('#wf-crm-billing-total').data('data-amount') == '0') {
+            debugging('qplfr');
             return true;
           }
         }
         if ($processorFields.length) {
           if ($processorFields.filter(':checked').val() == '0') {
+            debugging('evxyh');
             return true;
           }
           if (!($form.find('input[name="stripe_token"]').length)) {
+            debugging('irjfg');
             return true;
           }
         }
@@ -150,6 +155,7 @@
         if(typeof currentTotal !== 'undefined') {
           if (currentTotal == 0 && !additionalParticipants) {
             // This is also hit when "Going back", but we already have stripe_token.
+            debugging('ozlkf');
             return true;
           }
         }
@@ -161,11 +167,13 @@
         if (($form.find('input[name="payment_processor"]:checked').length) || ($form.find('input[name="payment_processor_id"]:checked').length)) {
           processorId = $form.find(('input[name="payment_processor"]:checked')||('input[name="payment_processor_id"]:checked').val());
           if (!($form.find('input[name="stripe_token"]').length) || ($('#stripe-id').length && $('#stripe-id').val() != processorId)) {
+            debugging('kfoej');
             return true;
           }
         }
         else {
           // No payment processor is checked.
+          debugging('qlmvy');
           return true;
         }
       }
@@ -173,6 +181,7 @@
       // Handle pay later (option value '0' in payment_processor radio group).
       if (($form.find('input[name="payment_processor"]:checked').length && !parseInt($form.find('input[name="payment_processor"]:checked').val()))
         || ($form.find('input[name="payment_processor_id"]:checked').length && !parseInt($form.find('input[name="payment_processor_id"]:checked').val()))) { 
+        debugging('ynhpz');
         return true;
       }
 
@@ -180,12 +189,14 @@
       if ($form.find("input#stripe-token").val()) {
         $form.find("input#credit_card_number").removeAttr('name');
         $form.find("input#cvv2").removeAttr('name');
+        debugging('zpqef');
         return true;
       }
 
       // If there's no credit card field, no use in continuing (probably wrong
       // context anyway)
       if (!$form.find('#credit_card_number').length) {
+        debugging('gvzod');
         return true;
       }
 
@@ -210,7 +221,14 @@
         exp_year:    cc_year
       }, stripeResponseHandler);
 
+      debugging('ywkvh');
       return false;
     });
   });
 }(cj, CRM));
+
+function debugging (errorCode) {
+// Uncomment the following to debug unexpected returns.
+//  console.log(errorCode);
+}
+