1 files changed, 4 insertions, 1 deletions
diff --git a/src/webchannel.js b/src/webchannel.js
index d3521ad..37e2314 100644
--- a/src/webchannel.js
+++ b/src/webchannel.js
@@ -65,10 +65,13 @@ var QWebChannel = function(baseUrl, initCallback)
     this.socket.onmessage = function(message)
     {
         var jsonData = JSON.parse(message.data);
-        if (jsonData.id === undefined || jsonData.data === undefined) {
+        if (jsonData.id === undefined) {
             console.error("invalid message received:", message.data);
             return;
         }
+        if (jsonData.data === undefined) {
+            jsonData.data = {};
+        }
         if (jsonData.response) {
             channel.execCallbacks[jsonData.id](jsonData.data);
             delete channel.execCallbacks[jsonData.id];