From c5e380ed57ec1030cfd4c9e01c9486abae6706cf Mon Sep 17 00:00:00 2001
From: Duncan Beevers <duncan@dweebd.com>
Date: Thu, 10 Jul 2014 16:02:10 -0500
Subject: [PATCH] =?utf8?q?Don=E2=80=99t=20choke=20on=20valueless=20event?=
 =?utf8?q?=20attributes?=
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

---
 src/htmlminifier.js | 2 +-
 tests/minifier.js   | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/htmlminifier.js b/src/htmlminifier.js
index abae81c..cb24628 100644
--- a/src/htmlminifier.js
+++ b/src/htmlminifier.js
@@ -186,7 +186,7 @@
   }
 
   function cleanAttributeValue(tag, attrName, attrValue, options, attrs) {
-    if (isEventAttribute(attrName)) {
+    if (attrValue && isEventAttribute(attrName)) {
       attrValue = trimWhitespace(attrValue).replace(/^javascript:\s*/i, '').replace(/\s*;$/, '');
       if (options.minifyJS) {
         var wrappedCode = '(function(){' + attrValue + '})()';
diff --git a/tests/minifier.js b/tests/minifier.js
index c64b556..efb61ef 100644
--- a/tests/minifier.js
+++ b/tests/minifier.js
@@ -54,6 +54,8 @@
 
     // https://github.com/kangax/html-minifier/issues/169
     equal(minify('<a href>ok</a>'), '<a href>ok</a>');
+
+    equal(minify('<a onclick></a>'), '<a onclick></a>');
   });
 
   test('`minifiy` exists', function() {
-- 
2.34.1