diff --git a/src/General/lib/clone.class b/src/General/lib/clone.class
index 63133189c..023fd4b97 100755
--- a/src/General/lib/clone.class
+++ b/src/General/lib/clone.class
@@ -21,6 +21,7 @@ class Clone extends Post
       quotelinks: []
 
     # XXX Edge invalidates HTMLCollections when an ancestor node is inserted into another node.
+    # https://connect.microsoft.com/IE/feedback/details/1198967/ie11-appendchild-provoke-an-error-on-an-htmlcollection
     if $.engine is 'edge'
       Object.defineProperty @nodes, 'backlinks',
         configurable: true
diff --git a/src/General/lib/post.class b/src/General/lib/post.class
index 719dc338a..039999b55 100755
--- a/src/General/lib/post.class
+++ b/src/General/lib/post.class
@@ -42,6 +42,7 @@ class Post
       quotelinks: []
 
     # XXX Edge invalidates HTMLCollections when an ancestor node is inserted into another node.
+    # https://connect.microsoft.com/IE/feedback/details/1198967/ie11-appendchild-provoke-an-error-on-an-htmlcollection
     if $.engine is 'edge'
       Object.defineProperty @nodes, 'backlinks',
         configurable: true