grunt

dist/css/bootstrap.css

@@ -5313,8 +5313,7 @@ button.close {
   left: 0;
   z-index: 1050;
   display: none;
-  overflow: auto;
-  overflow-y: scroll;
+  overflow: hidden;
   -webkit-overflow-scrolling: touch;
   outline: 0;
 }
@@ -5331,6 +5330,10 @@ button.close {
        -o-transform: translate3d(0, 0, 0);
           transform: translate3d(0, 0, 0);
 }
+.modal-open .modal {
+  overflow-x: hidden;
+  overflow-y: auto;
+}
 .modal-dialog {
   position: relative;
   width: auto;