1 files changed, 1 insertions, 0 deletions
diff --git a/ext/sw.js b/ext/sw.js
index 6394260e..6443c57f 100644
--- a/ext/sw.js
+++ b/ext/sw.js
@@ -33,6 +33,7 @@ self.importScripts(
     '/js/data/json-schema.js',
     '/js/data/options-util.js',
     '/js/data/permissions-util.js',
+    '/js/data/sandbox/string-util.js',
     '/js/dom/simple-dom-parser.js',
     '/js/general/cache-map.js',
     '/js/general/object-property-accessor.js',