1 files changed, 4 insertions, 5 deletions
diff --git a/vendor/twbs/bootstrap/js/src/util/backdrop.js b/vendor/twbs/bootstrap/js/src/util/backdrop.js
index e98d80707..7ba7b4c43 100644
--- a/vendor/twbs/bootstrap/js/src/util/backdrop.js
+++ b/vendor/twbs/bootstrap/js/src/util/backdrop.js
@@ -1,6 +1,6 @@
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v5.1.1): util/backdrop.js
+ * Bootstrap (v5.0.2): util/backdrop.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -9,7 +9,6 @@ import EventHandler from '../dom/event-handler'
 import { execute, executeAfterTransition, getElement, reflow, typeCheckConfig } from './index'
 
 const Default = {
-  className: 'modal-backdrop',
   isVisible: true, // if false, we use the backdrop helper without adding any element to the dom
   isAnimated: false,
   rootElement: 'body', // give the choice to place backdrop under different elements
@@ -17,13 +16,13 @@ const Default = {
 }
 
 const DefaultType = {
-  className: 'string',
   isVisible: 'boolean',
   isAnimated: 'boolean',
   rootElement: '(element|string)',
   clickCallback: '(function|null)'
 }
 const NAME = 'backdrop'
+const CLASS_NAME_BACKDROP = 'modal-backdrop'
 const CLASS_NAME_FADE = 'fade'
 const CLASS_NAME_SHOW = 'show'
 
@@ -74,7 +73,7 @@ class Backdrop {
   _getElement() {
     if (!this._element) {
       const backdrop = document.createElement('div')
-      backdrop.className = this._config.className
+      backdrop.className = CLASS_NAME_BACKDROP
       if (this._config.isAnimated) {
         backdrop.classList.add(CLASS_NAME_FADE)
       }
@@ -102,7 +101,7 @@ class Backdrop {
       return
     }
 
-    this._config.rootElement.append(this._getElement())
+    this._config.rootElement.appendChild(this._getElement())
 
     EventHandler.on(this._getElement(), EVENT_MOUSEDOWN, () => {
       execute(this._config.clickCallback)