MAGETWO-52329: [PR] Prepare and process PR

- Fix create order with configurable product

Author: Volodymyr Zaets

app/code/Magento/Sales/view/adminhtml/templates/order/create/js.phtml

@@ -10,20 +10,19 @@
 require([
     "prototype",
     "Magento_Sales/order/create/form",
-    "Magento_Catalog/catalog/product/composite/configure"
+    "Magento_Catalog/catalog/product/composite/configure",
+    "domReady!"
 ], function(){
 
     order.sidebarHide();
-    Event.observe(window, 'load',  function() {
-        if (window.productConfigure) {
-            productConfigure.addListType('product_to_add', {
-                urlFetch: '<?php /* @escapeNotVerified */ echo $block->getUrl('sales/order_create/configureProductToAdd') ?>'
-            });
-            productConfigure.addListType('quote_items', {
-                urlFetch: '<?php /* @escapeNotVerified */ echo $block->getUrl('sales/order_create/configureQuoteItems') ?>'
-            });
-        }
-    });
+    if (window.productConfigure) {
+        productConfigure.addListType('product_to_add', {
+            urlFetch: '<?php /* @escapeNotVerified */ echo $block->getUrl('sales/order_create/configureProductToAdd') ?>'
+        });
+        productConfigure.addListType('quote_items', {
+            urlFetch: '<?php /* @escapeNotVerified */ echo $block->getUrl('sales/order_create/configureQuoteItems') ?>'
+        });
+    }
 
 });
 </script>