1 files changed, 7 insertions, 4 deletions

diff --git a/assets/javascripts/bootstrap/modal.js b/assets/javascripts/bootstrap/modal.js
index af62dbd..e553e27 100644
--- a/assets/javascripts/bootstrap/modal.js
+++ b/assets/javascripts/bootstrap/modal.js
@@ -6,7 +6,7 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
 
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.0.0-alpha.2): modal.js
+ * Bootstrap (v4.0.0-alpha.3): modal.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -20,13 +20,14 @@ var Modal = (function ($) {
    */
 
   var NAME = 'modal';
-  var VERSION = '4.0.0-alpha.2';
+  var VERSION = '4.0.0-alpha.3';
   var DATA_KEY = 'bs.modal';
   var EVENT_KEY = '.' + DATA_KEY;
   var DATA_API_KEY = '.data-api';
   var JQUERY_NO_CONFLICT = $.fn[NAME];
   var TRANSITION_DURATION = 300;
   var BACKDROP_TRANSITION_DURATION = 150;
+  var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
 
   var Default = {
     backdrop: true,
@@ -222,6 +223,7 @@ var Modal = (function ($) {
         }
 
         this._element.style.display = 'block';
+        this._element.removeAttribute('aria-hidden');
         this._element.scrollTop = 0;
 
         if (transition) {
@@ -270,7 +272,7 @@ var Modal = (function ($) {
 
         if (this._isShown && this._config.keyboard) {
           $(this._element).on(Event.KEYDOWN_DISMISS, function (event) {
-            if (event.which === 27) {
+            if (event.which === ESCAPE_KEYCODE) {
               _this4.hide();
             }
           });
@@ -293,6 +295,7 @@ var Modal = (function ($) {
         var _this5 = this;
 
         this._element.style.display = 'none';
+        this._element.setAttribute('aria-hidden', 'true');
         this._showBackdrop(function () {
           $(document.body).removeClass(ClassName.OPEN);
           _this5._resetAdjustments();
@@ -398,7 +401,7 @@ var Modal = (function ($) {
         }
 
         if (this._isBodyOverflowing && !isModalOverflowing) {
-          this._element.style.paddingRight = this._scrollbarWidth + 'px~';
+          this._element.style.paddingRight = this._scrollbarWidth + 'px';
         }
       }
     }, {