diff --git a/admin/javascript/LeftAndMain.Preview.js b/admin/javascript/LeftAndMain.Preview.js
index 7b641f90a..a19854236 100644
--- a/admin/javascript/LeftAndMain.Preview.js
+++ b/admin/javascript/LeftAndMain.Preview.js
@@ -129,6 +129,7 @@
 			
 			_fixIframeLinks: function() {
 				var doc = this.find('iframe')[0].contentDocument;
+				if(!doc) return;
 
 				// Block outside links from going anywhere
 				var links = doc.getElementsByTagName('A');
diff --git a/forms/HtmlEditorConfig.php b/forms/HtmlEditorConfig.php
index dc72819bb..3162850b3 100644
--- a/forms/HtmlEditorConfig.php
+++ b/forms/HtmlEditorConfig.php
@@ -308,7 +308,6 @@ class HtmlEditorConfig {
 if((typeof tinyMCE != 'undefined')) {
 	$externalPluginsJS
 	var ssTinyMceConfig = " . Convert::raw2json($config) . ";
-	tinyMCE.init(ssTinyMceConfig);
 }
 ";
 	}
diff --git a/javascript/HtmlEditorField.js b/javascript/HtmlEditorField.js
index cee0c3559..d282793c2 100644
--- a/javascript/HtmlEditorField.js
+++ b/javascript/HtmlEditorField.js
@@ -209,8 +209,17 @@ ss.editorWrappers['default'] = ss.editorWrappers.tinyMCE;
 					}
 				});
 
-				// Only works after TinyMCE.init() has been invoked, see $(window).bind() call below for details.
-				this.redraw();
+				// Using a global config (generated through HTMLEditorConfig PHP logic).
+				// Depending on browser cache load behaviour, entwine's DOMMaybeChanged
+				// can be called before the bottom-most inline script tag is executed,
+				// which defines the global. If that's the case, wait for the window load.
+				if(typeof ssTinyMceConfig != 'undefined') {
+					this.redraw();
+				} else {
+					$(window).bind('load', function() {
+						self.redraw();
+					});
+				}
 
 				this._super();
 			},
@@ -219,6 +228,8 @@ ss.editorWrappers['default'] = ss.editorWrappers.tinyMCE;
 				// Using a global config (generated through HTMLEditorConfig PHP logic)
 				var config = ssTinyMceConfig, self = this, ed = this.getEditor();
 
+				tinyMCE.init(config);
+
 				// Avoid flicker (also set in CSS to apply as early as possible)
 				self.css('visibility', '');