1 files changed, 3 insertions, 5 deletions
diff --git a/js/src/dom/manipulator.js b/js/src/dom/manipulator.js
index 04b9543c8..faab54b5e 100644
--- a/js/src/dom/manipulator.js
+++ b/js/src/dom/manipulator.js
@@ -43,16 +43,14 @@ const Manipulator = {
       return {}
     }
 
-    const attributes = {
-      ...element.dataset
-    }
+    const attributes = {}
 
-    Object.keys(attributes)
+    Object.keys(element.dataset)
       .filter(key => key.startsWith('bs'))
       .forEach(key => {
         let pureKey = key.replace(/^bs/, '')
         pureKey = pureKey.charAt(0).toLowerCase() + pureKey.slice(1, pureKey.length)
-        attributes[pureKey] = normalizeData(attributes[key])
+        attributes[pureKey] = normalizeData(element.dataset[key])
       })
 
     return attributes