diff --git a/ext/src/shim/cast/classes/Session.ts b/ext/src/shim/cast/classes/Session.ts
index 7d0068a..095e470 100755
--- a/ext/src/shim/cast/classes/Session.ts
+++ b/ext/src/shim/cast/classes/Session.ts
@@ -47,6 +47,7 @@ export default class Session {
     private _setReceiverVolumeLevelCallbacks: CallbacksMap = new Map();
     private _stopCallbacks: CallbacksMap = new Map();
 
+
     constructor (
             public sessionId: string
           , public appId: string
@@ -95,6 +96,7 @@ export default class Session {
                 case "shim:/session/connected": {
                     this.status = SessionStatus.CONNECTED;
                     this.sessionId = message.data.sessionId;
+                    this.transportId = message.data.sessionId;
                     this.namespaces = message.data.namespaces;
                     this.displayName = message.data.displayName;
                     this.statusText = message.data.statusText;
diff --git a/ext/src/shim/cast/index.ts b/ext/src/shim/cast/index.ts
index 0e07c84..195b2af 100755
--- a/ext/src/shim/cast/index.ts
+++ b/ext/src/shim/cast/index.ts
@@ -85,7 +85,7 @@ export default {
 
         // Already initialized
         if (apiConfig) {
-            errorCallback(new Error_(ErrorCode.RECEIVER_UNAVAILABLE));
+            errorCallback(new Error_(ErrorCode.INVALID_PARAMETER));
             return;
         }
 
@@ -239,8 +239,8 @@ onMessage(message => {
                                 subject: "popup:/close"
                             });
 
-                            apiConfig.sessionListener(session);
                             sessionRequestInProgress = false;
+
                             sessionSuccessCallback(
                                     session
                                   , message.data.selectedMedia);