packages/core/src/message_handler.js

@@ -26,6 +26,13 @@ export default class MessageHandler {
         if (data.callback === 'resolve') {
           capability.resolve(data.data);
         } else {
+          console.log({
+            data: {
+              action: data.data.action,
+              data: data.data.data
+            },
+            message: data.reason && data.reason.message
+          })
           throw new Error("Unexpected callback case");
         }
         return;