MAGETWO-45058: [IE9] impossible to create attribute in configurable product

Author: Oleksandr Dubovyk

app/code/Magento/Catalog/view/adminhtml/web/catalog/product-attributes.js

@@ -24,6 +24,7 @@ define([
                 type: 'slide',
                 buttons: [],
                 opened: function () {
+                    $(this).parent().addClass('modal-content-new-attribute');
                     self.iframe = $('<iframe id="create_new_attribute_container">').attr({
                         src: self._prepareUrl(),
                         frameborder: 0

app/design/adminhtml/Magento/backend/web/css/source/components/_modals_extend.less

@@ -140,6 +140,13 @@
 }
 
 .modal-slide {
+
+
+    .modal-content-new-attribute {
+        -webkit-overflow-scrolling: touch;
+        overflow: auto;
+    }
+
     .modal-title {
         font-size: @modal-slide-title__font-size;
         margin-right: @modal-slide-title__font-size + @modal-slide__padding + 1rem;