Support jQuery 1.9

Thanks to @RichardD2 in #11.

README.md

@@ -53,7 +53,7 @@ This plugin includes my [noSelect jQuery plugin](http://mths.be/noselect).
 
 This plugin automatically feature tests for native `<details>`/`<summary>` support and only enables the fallback when it’s necessary. You don’t have to write any feature tests yourself.
 
-This plugin requires jQuery 1.7+. For a version that works with older jQueries, [see v0.0.1](https://github.com/mathiasbynens/jquery-details/blob/0.0.1/jquery.details.js).
+This plugin requires jQuery 1.9+. For a version that works with jQuery 1.8 or older, [see v0.0.6](https://github.com/mathiasbynens/jquery-details/blob/0.0.6/jquery.details.js). For a version that works with jQuery 1.6 or older, [see v0.0.1](https://github.com/mathiasbynens/jquery-details/blob/0.0.1/jquery.details.js).
 
 This fallback works in all A-grade browsers, including IE6. It will only be executed if the `<details>` element is not natively supported in the browser. If it isn’t, and JavaScript is disabled, all elements will still be visible to the user.
 

demo.html

@@ -64,17 +64,17 @@ <h1>Copying “Really Achieving Your Childhood Dreams” (<code>details</code> w
 			<details>
 				<dl>
 					<dt>Transfer rate:</dt>
-					 <dd>452KB/s</dd>
+						<dd>452KB/s</dd>
 					<dt>Local filename:</dt>
-					 <dd>/home/rpausch/raycd.m4v</dd>
+						<dd>/home/rpausch/raycd.m4v</dd>
 					<dt>Remote filename:</dt>
-					 <dd>/var/www/lectures/raycd.m4v</dd>
+						<dd>/var/www/lectures/raycd.m4v</dd>
 					<dt>Duration:</dt>
-					 <dd>01:16:27</dd>
+						<dd>01:16:27</dd>
 					<dt>Color profile:</dt>
-					 <dd>SD (6-1-6)</dd>
+						<dd>SD (6-1-6)</dd>
 					<dt>Dimensions:</dt>
-					 <dd>320×240</dd>
+						<dd>320×240</dd>
 				</dl>
 			</details>
 		</section>
@@ -85,17 +85,17 @@ <h1>Copying “Really Achieving Your Childhood Dreams” (<code>details</code> w
 				<summary>Copying… <progress max="375505392" value="97543282"></progress> 25%</summary>
 				<dl>
 					<dt>Transfer rate:</dt>
-					 <dd>452KB/s</dd>
+						<dd>452KB/s</dd>
 					<dt>Local filename:</dt>
-					 <dd>/home/rpausch/raycd.m4v</dd>
+						<dd>/home/rpausch/raycd.m4v</dd>
 					<dt>Remote filename:</dt>
-					 <dd>/var/www/lectures/raycd.m4v</dd>
+						<dd>/var/www/lectures/raycd.m4v</dd>
 					<dt>Duration:</dt>
-					 <dd>01:16:27</dd>
+						<dd>01:16:27</dd>
 					<dt>Color profile:</dt>
-					 <dd>SD (6-1-6)</dd>
+						<dd>SD (6-1-6)</dd>
 					<dt>Dimensions:</dt>
-					 <dd>320×240</dd>
+						<dd>320×240</dd>
 				</dl>
 			</details>
 		</section>
@@ -143,7 +143,7 @@ <h1>Nested <code>details</code> elements</h1>
 				<p>lolwat</p>
 			</details>
 		</section>
-		<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
+		<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
 		<script src="jquery.details.js"></script>
 		<script>
 			window.console || (window.console = { 'log': alert });

jquery.details.js

@@ -1,4 +1,4 @@
-/*! http://mths.be/details v0.0.6 by @mathias | includes http://mths.be/noselect v1.0.3 */
+/*! http://mths.be/details v0.1.0 by @mathias | includes http://mths.be/noselect v1.0.3 */
 ;(function(document, $) {
 
 	var proto = $.fn,
@@ -32,7 +32,7 @@
 	    	return diff;
 	    }(document)),
 	    toggleOpen = function($details, $detailsSummary, $detailsNotSummary, toggle) {
-	    	var isOpen = typeof $details.attr('open') == 'string',
+	    	var isOpen = $details.prop('open'),
 	    	    close = isOpen && toggle || !isOpen && !toggle;
 	    	if (close) {
 	    		$details.removeClass('open').prop('open', false).triggerHandler('close.details');
@@ -122,6 +122,7 @@
 				}
 
 				// Hide content unless there’s an `open` attribute
+				$details.prop('open', typeof $details.attr('open') == 'string');
 				toggleOpen($details, $detailsSummary, $detailsNotSummary);
 
 				// Add `role=button` and set the `tabindex` of the `summary` element to `0` to make it keyboard accessible