From c1e9e355ecb07f49c67149297db3ab5968d5453f Mon Sep 17 00:00:00 2001
From: Ludovic Marcotte <lmarcotte@inverse.ca>
Date: Tue, 13 Mar 2018 13:05:53 -0400
Subject: [PATCH] (fix) prevent deletion of special folders using del key
 (fixes #4396)

---
 NEWS                                                   | 6 ++++++
 UI/WebServerResources/js/Mailer/MailboxesController.js | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/NEWS b/NEWS
index 7480cbe71a..5c5c494673 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,9 @@
+4.0.1 (2018-03-XX)
+------------------
+
+Bug fixes
+ - [web] prevent deletion of special folders using del key
+
 4.0.0 (2018-03-07)
 ------------------
 
diff --git a/UI/WebServerResources/js/Mailer/MailboxesController.js b/UI/WebServerResources/js/Mailer/MailboxesController.js
index 18ebbecae6..8dadbeb269 100644
--- a/UI/WebServerResources/js/Mailer/MailboxesController.js
+++ b/UI/WebServerResources/js/Mailer/MailboxesController.js
@@ -53,7 +53,7 @@
           key: hotkey,
           description: l('Delete selected message or folder'),
           callback: function() {
-            if (Mailbox.selectedFolderController && Mailbox.selectedFolder && !Mailbox.selectedFolder.hasSelectedMessage())
+            if (Mailbox.selectedFolderController && Mailbox.selectedFolder && Mailbox.selectedFolder.$isEditable && !Mailbox.selectedFolder.hasSelectedMessage())
               Mailbox.selectedFolderController.confirmDelete(Mailbox.selectedFolder);
           }
         }));