From 834a10273b677aa343a9e5fc0cfb5650e631ced4 Mon Sep 17 00:00:00 2001
From: jangliss <jangliss@7612ce4b-ef26-0410-bec9-ea0150e637f0>
Date: Tue, 8 Feb 2005 16:22:24 +0000
Subject: [PATCH] This fixes empty src tags, and sets them to the blank image. 
 IE causes a logout to occur when the img src tag is empty. Setting iframe,
 frame, or input image to the blank image shouldn't cause any issues.

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@8826 7612ce4b-ef26-0410-bec9-ea0150e637f0
---
 ChangeLog          |  2 ++
 functions/mime.php | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 3059d5de..0718297e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -219,6 +219,8 @@ Version 1.5.1 -- CVS
 	with Internet Explorer.
   - Replace <img src="outbind://"> links with clean images to stop
     issues with Internet Explorer not being able to track down the image.
+  - Empty src attribute on img tags causes logouts (IE only), replacing
+    string with blank.png.
 
 
 Version 1.5.0
diff --git a/functions/mime.php b/functions/mime.php
index 6262a417..e4422622 100644
--- a/functions/mime.php
+++ b/functions/mime.php
@@ -1451,6 +1451,18 @@ function sq_fixatts($tagname,
                 }
             }
         }
+
+
+        /**
+         * Replace empty src tags with the blank image.  src is only used
+         * for frames, images, and image inputs.  Doing a replace should
+         * not affect them working as should be, however it will stop
+         * IE from being kicked off when src for img tags are not set
+         */
+        if (($attname == 'src') && ($attvalue = '""')) {
+            $attary{$attname} = '"' . SM_PATH . 'images/blank.png"';
+        }
+
         /**
         * Turn cid: urls into http-friendly ones.
         */
-- 
2.25.1