From 4fb7f7754c179f6292edf78832d43da9a661ce82 Mon Sep 17 00:00:00 2001
From: Andrey Lushnikov <lushnikov@chromium.org>
Date: Wed, 5 Jul 2017 17:21:42 -0700
Subject: [PATCH] add a more clear message for protocol errors

---
 lib/Connection.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Connection.js b/lib/Connection.js
index fa52efc9..600b0602 100644
--- a/lib/Connection.js
+++ b/lib/Connection.js
@@ -61,7 +61,7 @@ class Connection extends EventEmitter {
       let callback = this._callbacks.get(object.id);
       this._callbacks.delete(object.id);
       if (object.error)
-        callback.reject(new Error(`Protocol error (${callback.method}): ${object.error.message}`));
+        callback.reject(new Error(`Protocol error (${callback.method}): ${object.error.message} ${object.error.data}`));
       else
         callback.resolve(object.result);
     } else {