diff --git a/src/utils/jms.js b/src/utils/jms.js
index 4f03efae9..7b5c49bc1 100644
--- a/src/utils/jms.js
+++ b/src/utils/jms.js
@@ -146,5 +146,7 @@ export function getConstRouteName() {
 }
 
 export function toM2MJsonParams(attrFilter) {
-  return ['attr_rules', encodeURIComponent(btoa(JSON.stringify(attrFilter)))]
+  const encoder = new TextEncoder()
+  const data = encoder.encode(JSON.stringify(attrFilter))
+  return ['attr_rules', encodeURIComponent(btoa(String.fromCharCode(...data)))]
 }