diff --git a/CHANGELOG b/CHANGELOG
index 56700ef..b74c5b8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Optimize property detection of outerHTML. Avoids triggering FOUC in Safari 3.0.4. Closes #10702. [subimage, Tobie Langel]
+
 * Add document.loaded, a boolean that is set to true once dom:loaded is fired. Setting document.loaded to true before the document is loaded prevents dom:loaded from being fired. [Tobie Langel]
 
 * Make Element#insert standard-compliant. Fixes an issue in FF3b2 when inserting HTML or text inside DOM nodes which aren't (yet) appended to the document. [Tobie Langel]
diff --git a/src/dom.js b/src/dom.js
index 840886f..fabc504 100644
--- a/src/dom.js
+++ b/src/dom.js
@@ -918,7 +918,7 @@ if (Prototype.Browser.IE || Prototype.Browser.Opera) {
   };
 }
 
-if (document.createElement('div').outerHTML) {
+if ('outerHTML' in document.createElement('div')) {
   Element.Methods.replace = function(element, content) {
     element = $(element);