diff --git a/src/core/parseHTML.js b/src/core/parseHTML.js
index 87c2147d1..3524abd63 100644
--- a/src/core/parseHTML.js
+++ b/src/core/parseHTML.js
@@ -2,11 +2,8 @@ define( [
 	"../core",
 	"../var/document",
 	"./var/rsingleTag",
-	"../manipulation/buildFragment",
-
-	// This is the only module that needs core/support
-	"./support"
-], function( jQuery, document, rsingleTag, buildFragment, support ) {
+	"../manipulation/buildFragment"
+], function( jQuery, document, rsingleTag, buildFragment ) {
 
 // Argument "data" should be string of html
 // context (optional): If specified, the fragment will be created in this context,
@@ -20,12 +17,7 @@ jQuery.parseHTML = function( data, context, keepScripts ) {
 		keepScripts = context;
 		context = false;
 	}
-
-	// Stop scripts or inline event handlers from being executed immediately
-	// by using document.implementation
-	context = context || ( support.createHTMLDocument ?
-		document.implementation.createHTMLDocument( "" ) :
-		document );
+	context = context || document;
 
 	var parsed = rsingleTag.exec( data ),
 		scripts = !keepScripts && [];
diff --git a/src/core/support.js b/src/core/support.js
deleted file mode 100644
index 0609a700b..000000000
--- a/src/core/support.js
+++ /dev/null
@@ -1,18 +0,0 @@
-define( [
-	"../var/document",
-	"../var/support"
-], function( document, support ) {
-
-// Support: Safari 8+
-// In Safari 8 documents created via document.implementation.createHTMLDocument
-// collapse sibling forms: the second one becomes a child of the first one.
-// Because of that, this security measure has to be disabled in Safari 8.
-// https://bugs.webkit.org/show_bug.cgi?id=137337
-support.createHTMLDocument = ( function() {
-	var body = document.implementation.createHTMLDocument( "" ).body;
-	body.innerHTML = "<form></form><form></form>";
-	return body.childNodes.length === 2;
-} )();
-
-return support;
-} );
diff --git a/test/unit/core.js b/test/unit/core.js
index a9e93989c..accdae8e1 100644
--- a/test/unit/core.js
+++ b/test/unit/core.js
@@ -1491,22 +1491,6 @@ QUnit.test("jQuery.parseHTML", function( assert ) {
 	assert.ok( jQuery.parseHTML("<#if><tr><p>This is a test.</p></tr><#/if>") || true, "Garbage input should not cause error" );
 });
 
-if ( jQuery.support.createHTMLDocument && !/opera.*version\/12\.1/i.test( navigator.userAgent ) ) {
-	QUnit.asyncTest( "jQuery.parseHTML", function( assert ) {
-		assert.expect( 1 );
-
-		Globals.register( "parseHTMLError" );
-
-		jQuery.globalEval( "parseHTMLError = false;" );
-		jQuery.parseHTML( "<img src=x onerror='parseHTMLError = true'>" );
-
-		window.setTimeout( function() {
-			QUnit.start();
-			assert.equal( window.parseHTMLError, false, "onerror eventhandler has not been called." );
-		}, 2000 );
-	} );
-}
-
 QUnit.test( "jQuery.parseJSON", function( assert ) {
 	assert.expect( 20 );
 
diff --git a/test/unit/support.js b/test/unit/support.js
index 5d3e38a4b..af2bd9238 100644
--- a/test/unit/support.js
+++ b/test/unit/support.js
@@ -65,7 +65,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": version >= 13,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -84,7 +83,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -103,7 +101,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": false,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": true,
 			"noCloneChecked": false,
 			"optDisabled": true,
@@ -122,7 +119,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": false,
 			"cors": false,
-			"createHTMLDocument": true,
 			"focusin": true,
 			"noCloneChecked": false,
 			"optDisabled": true,
@@ -144,7 +140,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -163,7 +158,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -182,7 +176,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": false,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -201,7 +194,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -220,7 +212,6 @@ testIframeWithCallback(
 			"checkOn": false,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -239,7 +230,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -258,7 +248,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -277,7 +266,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": false,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -296,7 +284,6 @@ testIframeWithCallback(
 			"checkOn": true,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -315,7 +302,6 @@ testIframeWithCallback(
 			"checkOn": false,
 			"clearCloneStyle": true,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": true,
@@ -334,7 +320,6 @@ testIframeWithCallback(
 			"checkOn": false,
 			"clearCloneStyle": false,
 			"cors": true,
-			"createHTMLDocument": true,
 			"focusin": false,
 			"noCloneChecked": true,
 			"optDisabled": false,