1 files changed, 2 insertions, 2 deletions
diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index bab82015..b40228b0 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -175,8 +175,8 @@ class Display {
         const handlers = Display.runtimeMessageHandlers;
         if (handlers.hasOwnProperty(action)) {
             const handler = handlers[action];
-            handler(this, params);
-            callback();
+            const result = handler(this, params);
+            callback(result);
         }
     }