1 files changed, 9 insertions, 1 deletions
diff --git a/js/src/dom/manipulator.js b/js/src/dom/manipulator.js
index 1be3a793f..d870a099d 100644
--- a/js/src/dom/manipulator.js
+++ b/js/src/dom/manipulator.js
@@ -22,7 +22,15 @@ function normalizeData(val) {
     return null
   }
 
-  return val
+  if (typeof val !== 'string') {
+    return val
+  }
+
+  try {
+    return JSON.parse(decodeURIComponent(val))
+  } catch {
+    return val
+  }
 }
 
 function normalizeDataKey(key) {