diff --git a/src/platform/$.coffee b/src/platform/$.coffee
index 6d89ac0b6..7433ec760 100644
--- a/src/platform/$.coffee
+++ b/src/platform/$.coffee
@@ -124,11 +124,6 @@ $.asap = (test, cb) ->
 $.onExists = (root, selector, cb) ->
   if el = $ selector, root
     return cb el
-  # XXX Edge doesn't notify MutationObservers of nodes added as document loads.
-  if $.engine is 'edge' and d.readyState is 'loading'
-    $.asap (-> d.readyState isnt 'loading' or $ selector, root), ->
-      $.onExists root, selector, cb
-    return
   observer = new MutationObserver ->
     if el = $ selector, root
       observer.disconnect()