Display window after wiring up windor.onerror

src/atom.coffee

@@ -196,10 +196,6 @@ class Atom extends Model
   #
   # Call after this instance has been assigned to the `atom` global.
   initialize: ->
-    dimensions = @restoreWindowDimensions()
-    maximize = dimensions?.maximized and process.platform isnt 'darwin'
-    @displayWindow({maximize})
-
     sourceMapCache = {}
 
     window.onerror = =>
@@ -227,6 +223,10 @@ class Atom extends Model
     @disposables?.dispose()
     @disposables = new CompositeDisposable
 
+    dimensions = @restoreWindowDimensions()
+    maximize = dimensions?.maximized and process.platform isnt 'darwin'
+    @displayWindow({maximize})
+
     @setBodyPlatformClass()
 
     @loadTime = null