diff --git a/ext/bg/js/api.js b/ext/bg/js/api.js
index 4b6729ad..2afe82a0 100644
--- a/ext/bg/js/api.js
+++ b/ext/bg/js/api.js
@@ -18,11 +18,11 @@
 
 
 async function apiOptionsSet(options) {
-    utilBackend().onOptionsUpdated(utilIsolate(options));
+    utilBackend().onOptionsUpdated(options);
 }
 
 async function apiOptionsGet() {
-    return utilIsolate(utilBackend().options);
+    return utilBackend().options;
 }
 
 async function apiTermsFind(text) {
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index 9602d385..6b3acaa9 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -37,7 +37,7 @@ class Backend {
     }
 
     onOptionsUpdated(options) {
-        this.options = options;
+        this.options = utilIsolate(options);
 
         if (!options.general.enable) {
             chrome.browserAction.setBadgeBackgroundColor({color: '#555555'});