From 3b94af4c28138a513327b9ce33469fa8749173e2 Mon Sep 17 00:00:00 2001
From: Csaba Kos <csaba@indeed.com>
Date: Thu, 7 Jul 2016 15:27:02 +0900
Subject: [PATCH] Account for the fact that STATE_TRANSFERRING may happen 0
 times. Possibly fixes #18.

---
 lib/har-driver-actor.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/har-driver-actor.js b/lib/har-driver-actor.js
index 4e490ec..a579d05 100644
--- a/lib/har-driver-actor.js
+++ b/lib/har-driver-actor.js
@@ -275,6 +275,10 @@ var HarDriverActor = ActorClass(
   // Internals
 
   exposeToContentInternal: function(win) {
+    if (win.hasOwnProperty("HAR")) {
+      return;
+    }
+
     exportIntoContentScope(win, this.api, "HAR");
 
     let event = new win.MessageEvent("har-api-ready");
@@ -299,7 +303,7 @@ var HarDriverActor = ActorClass(
     let isTransferring = aFlag & Ci.nsIWebProgressListener.STATE_TRANSFERRING;
 
     let win = aProgress.DOMWindow;
-    if (isDocument && isTransferring) {
+    if (isDocument && (isTransferring || isStop)) {
       this.exposeToContentInternal(win);
     }
   })),