[Pkg-mozext-commits] [tabmixplus] 13/61: Make sure docShell exit before processing message to the content

[David Prévot]

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taffit pushed a commit to branch master
in repository tabmixplus.

commit a4357c9096c9316c572e2c268bccaea913c082d0
Author: onemen <tabmix.onemen at gmail.com>
Date:   Mon Jul 13 20:56:01 2015 +0300

    Make sure docShell exit before processing message to the content
---
 chrome/content/content.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/chrome/content/content.js b/chrome/content/content.js
index 16165dc..d69e387 100644
--- a/chrome/content/content.js
+++ b/chrome/content/content.js
@@ -50,6 +50,11 @@ let TabmixContentHandler = {
   },
 
   receiveMessage: function ({name, data}) {
+    // The docShell might be gone. Don't process messages,
+    // that will just lead to errors anyway.
+    if (!docShell) {
+      return;
+    }
     switch (name) {
       case "Tabmix:restorePermissions":
         let disallow = new Set(data.disallow && data.disallow.split(","));

-- 
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