diff --git a/js/iD/id.js b/js/iD/id.js
index 11ea94ca2..8468694e6 100644
--- a/js/iD/id.js
+++ b/js/iD/id.js
@@ -1,4 +1,13 @@
 var iD = function(container) {
+
+    if (!iD.supported()) {
+        container.innerHTML = 'This editor is supported in Firefox, Chrome, Safari, Opera, ' +
+            'and Internet Explorer 9 and above. Please upgrade your browser ' +
+            'or use Potlatch 2 to edit the map.';
+        container.style.cssText = 'text-align:center;font-style:italic;';
+        return;
+    }
+
     container = d3.select(container);
 
     var m = container.append('div')
diff --git a/js/iD/renderer/Map.js b/js/iD/renderer/Map.js
index f787012ef..24a14fdc3 100644
--- a/js/iD/renderer/Map.js
+++ b/js/iD/renderer/Map.js
@@ -1,13 +1,5 @@
 iD.Map = function(elem, connection) {
 
-    if (!iD.supported()) {
-        elem.innerHTML = 'This editor is supported in Firefox, Chrome, Safari, Opera, ' +
-            'and Internet Explorer 9 and above. Please upgrade your browser ' +
-            'or use Potlatch 2 to edit the map.';
-        elem.style.cssText = 'text-align:center;font-style:italic;';
-        return;
-    }
-
     var map = {},
         dimensions = [],
         dispatch = d3.dispatch('move', 'update'),
@@ -451,11 +443,6 @@ iD.Map = function(elem, connection) {
         update();
     }
 
-    // Getters & setters for map state
-    // -------------------------------
-    // The map state can be expressed entirely as the combination
-    // of a centerpoint and a zoom level. Zoom levels are floating-point
-    // values, and we express lat, lon points as `{ lat, lon }` objects.
     function getExtent() {
         return [projection.invert([0, 0]), projection.invert(dimensions)];
     }