From e1aee8b4867e3d315d799ba06ba46fa7d7077c0c Mon Sep 17 00:00:00 2001
From: Stephen Blott
Date: Thu, 17 Mar 2016 12:54:44 +0000
Subject: More tweaks for #2053.

---
 background_scripts/main.coffee | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'background_scripts')

diff --git a/background_scripts/main.coffee b/background_scripts/main.coffee
index 42e9b344..1a67f2b2 100644
--- a/background_scripts/main.coffee
+++ b/background_scripts/main.coffee
@@ -360,10 +360,9 @@ Frames =
 
     port.onDisconnect.addListener listener = ->
       # Unregister the frame.  However, we never unregister the main/top frame.  If the tab is navigating to
-      # another page, then there'll be a new top frame (with the same Id) along soon.  If the tab is closing,
-      # then we'll tidy up in the chrome.tabs.onRemoved listener, below.  This approach avoids any dependency
-      # on the order in which register and unregister events happens (e.g. on navigation, a new top frame
-      # registering before the old one is deregistered).
+      # another page, then there'll be a new top frame with the same Id soon.  If the tab is closing, then
+      # we tidy up in the chrome.tabs.onRemoved listener.  This elides any dependency on the order in which
+      # events happen (e.g. on navigation, a new top frame registers before the old one unregisters).
       if tabId of frameIdsForTab and frameId != 0
         frameIdsForTab[tabId] = frameIdsForTab[tabId].filter (fId) -> fId != frameId
 
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