--- ./view/frontend/web/js/catalog-add-to-cart.js	2018-04-16 17:21:32.000000000 +0200
+++ ./view/frontend/web/js/catalog-add-to-cart.js	2018-04-16 17:21:32.000000000 +0200
@@ -33,11 +33,14 @@

         _bindSubmit: function() {
             var self = this;
+            this.element.mage('validation');
             this.element.on('submit', function(e) {
                 e.preventDefault();
-                self.submitForm($(this));
+                if(self.element.valid()) {
+                    self.submitForm($(this));
+                }
             });
-        },
+        },

         isLoaderEnabled: function() {
             return this.options.processStart && this.options.processStop;
@@ -120,7 +123,7 @@
         },

         disableAddToCartButton: function(form) {
-            var addToCartButtonTextWhileAdding = this.options.addToCartButtonTextWhileAdding || $t('Adding...');
+            var addToCartButtonTextWhileAdding = this.options.addToCartButtonTextWhileAdding || $t('Adding to Bag...');
             var addToCartButton = $(form).find(this.options.addToCartButtonSelector);
             addToCartButton.addClass(this.options.addToCartButtonDisabledClass);
             addToCartButton.find('span').text(addToCartButtonTextWhileAdding);
@@ -128,7 +131,7 @@
         },

         enableAddToCartButton: function(form) {
-            var addToCartButtonTextAdded = this.options.addToCartButtonTextAdded || $t('Added');
+            var addToCartButtonTextAdded = this.options.addToCartButtonTextAdded || $t('Added to Bag!');
             var self = this,
                 addToCartButton = $(form).find(this.options.addToCartButtonSelector);

--- ./view/frontend/templates/product/view/addtocart.phtml	2018-04-17 10:40:22.000000000 +0200
+++ ./view/frontend/templates/product/view/addtocart.phtml	2018-04-17 10:40:22.000000000 +0200
@@ -40,17 +40,17 @@
     </div>
 </div>
 <?php endif; ?>
-<?php if ($block->isRedirectToCartEnabled()) : ?>
+
     <script type="text/x-magento-init">
     {
         "#product_addtocart_form": {
             "Magento_Catalog/product/view/validation": {
-                "radioCheckboxClosest": ".nested"
+                "radioCheckboxClosest": ".nested",
+                "bindSubmit": true
             }
         }
     }
 </script>
-<?php else : ?>
     <script type="text/x-magento-init">
     {
         "#product_addtocart_form": {
@@ -58,4 +58,3 @@
         }
     }
 </script>
-<?php endif; ?>