diff --git a/wp-includes/embed-functions.php b/wp-includes/embed-functions.php
index 7f42773eea..3b67de9316 100644
--- a/wp-includes/embed-functions.php
+++ b/wp-includes/embed-functions.php
@@ -460,7 +460,7 @@ function get_post_embed_html( $width, $height, $post = null ) {
 
 	$embed_url = get_post_embed_url( $post );
 
-	$output = '<blockquote><a href="' . get_permalink( $post ) . '">' . get_the_title( $post ) . "</a></blockquote>\n";
+	$output = '<blockquote class="wp-embedded-content"><a href="' . esc_url( get_permalink( $post ) ) . '">' . get_the_title( $post ) . "</a></blockquote>\n";
 
 	$output .= "<script type='text/javascript'>\n";
 	$output .= "<!--//--><![CDATA[//><!--\n";
@@ -478,7 +478,7 @@ function get_post_embed_html( $width, $height, $post = null ) {
 		 * and edit wp-embed.js directly.
 		 */
 		$output .=<<<JS
-		!function(a,b){"use strict";function c(){if(!e){e=!0;var a,c,d,f=-1!==navigator.appVersion.indexOf("MSIE 10"),g=!!navigator.userAgent.match(/Trident.*rv\:11\./);if(f||g)for(a=b.querySelectorAll(".wp-embedded-content[security]"),d=0;d<a.length;d++)c=a[d].cloneNode(!0),c.removeAttribute("security"),a[d].parentNode.replaceChild(c,a[d])}}var d=b.querySelector&&a.addEventListener,e=!1;a.wp=a.wp||{},a.wp.receiveEmbedMessage||(a.wp.receiveEmbedMessage=function(c){var d=c.data;if(d.secret||d.message||d.value){var e,f,g,h,i,j=b.querySelectorAll('iframe[data-secret="'+d.secret+'"]'),k=b.querySelectorAll('blockquote[data-secret="'+d.secret+'"]');for(e=0;e<k.length;e++)k[e].style.display="none";for(e=0;e<j.length;e++)f=j[e],f.style.display="","height"===d.message&&(g=parseInt(d.value,10),g>1e3?g=1e3:200>~~g&&(g=200),f.height=g),"link"===d.message&&(h=b.createElement("a"),i=b.createElement("a"),h.href=f.getAttribute("src"),i.href=d.value,i.host===h.host&&b.activeElement===f&&(a.top.location.href=d.value))}},d&&(a.addEventListener("message",a.wp.receiveEmbedMessage,!1),b.addEventListener("DOMContentLoaded",c,!1),a.addEventListener("load",c,!1)))}(window,document);
+		!function(a,b){"use strict";function c(){if(!e){e=!0;var a,c,d,f,g=-1!==navigator.appVersion.indexOf("MSIE 10"),h=!!navigator.userAgent.match(/Trident.*rv:11\./),i=b.querySelectorAll("iframe.wp-embedded-content"),j=b.querySelectorAll("blockquote.wp-embedded-content");for(c=0;c<j.length;c++)j[c].style.display="none";for(c=0;c<i.length;c++)d=i[c],d.style.display="",d.getAttribute("data-secret")||(f=Math.random().toString(36).substr(2,10),d.src+="#?secret="+f,d.setAttribute("data-secret",f)),(g||h)&&d.getAttribute("security")&&(a=d.cloneNode(!0),a.removeAttribute("security"),d.parentNode.replaceChild(a,d))}}var d=b.querySelector&&a.addEventListener,e=!1;a.wp=a.wp||{},a.wp.receiveEmbedMessage||(a.wp.receiveEmbedMessage=function(c){var d=c.data;if(d.secret||d.message||d.value){var e,f,g,h,i,j=b.querySelectorAll('iframe[data-secret="'+d.secret+'"]'),k=b.querySelectorAll('blockquote[data-secret="'+d.secret+'"]');for(e=0;e<k.length;e++)k[e].style.display="none";for(e=0;e<j.length;e++)f=j[e],f.style.display="","height"===d.message&&(g=parseInt(d.value,10),g>1e3?g=1e3:200>~~g&&(g=200),f.height=g),"link"===d.message&&(h=b.createElement("a"),i=b.createElement("a"),h.href=f.getAttribute("src"),i.href=d.value,i.host===h.host&&b.activeElement===f&&(a.top.location.href=d.value))}},d&&(a.addEventListener("message",a.wp.receiveEmbedMessage,!1),b.addEventListener("DOMContentLoaded",c,!1),a.addEventListener("load",c,!1)))}(window,document);
 JS;
 	}
 	$output .= "\n//--><!]]>";
@@ -754,7 +754,7 @@ function wp_filter_oembed_result( $result, $data, $url ) {
 
 	$allowed_html = array(
 		'a'          => array(
-			        'href' => true,
+			'href'         => true,
 		),
 		'blockquote' => array(),
 		'iframe'     => array(
@@ -766,7 +766,6 @@ function wp_filter_oembed_result( $result, $data, $url ) {
 			'marginheight' => true,
 			'scrolling'    => true,
 			'title'        => true,
-			'class'        => true,
 		),
 	);
 
@@ -782,9 +781,10 @@ function wp_filter_oembed_result( $result, $data, $url ) {
 	if ( ! empty( $content[1] ) ) {
 		// We have a blockquote to fall back on. Hide the iframe by default.
 		$html = str_replace( '<iframe', '<iframe style="display:none;"', $html );
+		$html = str_replace( '<blockquote', '<blockquote class="wp-embedded-content"', $html );
 	}
 
-	$html = str_replace( '<iframe', '<iframe sandbox="allow-scripts" security="restricted"', $html );
+	$html = str_replace( '<iframe', '<iframe class="wp-embedded-content" sandbox="allow-scripts" security="restricted"', $html );
 
 	preg_match( '/ src=[\'"]([^\'"]*)[\'"]/', $html, $results );
 
@@ -938,7 +938,7 @@ function print_embed_scripts() {
 			 * and edit wp-embed-template.js directly.
 			 */
 			?>
-			!function(a,b){"use strict";function c(b,c){a.parent.postMessage({message:b,value:c,secret:g},"*")}function d(){function d(){l.className=l.className.replace("hidden",""),b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]').focus()}function e(){l.className+=" hidden",b.querySelector(".wp-embed-share-dialog-open").focus()}function f(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');c.setAttribute("aria-selected","false"),b.querySelector("#"+c.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),a.target.setAttribute("aria-selected","true"),b.querySelector("#"+a.target.getAttribute("aria-controls")).setAttribute("aria-hidden","false")}function g(a){var c,d,e=a.target,f=e.parentElement.previousElementSibling,g=e.parentElement.nextElementSibling;if(37===a.keyCode)c=f;else{if(39!==a.keyCode)return!1;c=g}"rtl"===b.documentElement.getAttribute("dir")&&(c=c===f?g:f),c&&(d=c.firstElementChild,e.setAttribute("tabindex","-1"),e.setAttribute("aria-selected",!1),b.querySelector("#"+e.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),d.setAttribute("tabindex","0"),d.setAttribute("aria-selected","true"),d.focus(),b.querySelector("#"+d.getAttribute("aria-controls")).setAttribute("aria-hidden","false"))}function h(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');n!==a.target||a.shiftKey?c===a.target&&a.shiftKey&&(n.focus(),a.preventDefault()):(c.focus(),a.preventDefault())}function j(a){var b,d=a.target;b=d.hasAttribute("href")?d.getAttribute("href"):d.parentElement.getAttribute("href"),c("link",b),a.preventDefault()}if(!i){i=!0;var k,l=b.querySelector(".wp-embed-share-dialog"),m=b.querySelector(".wp-embed-share-dialog-open"),n=b.querySelector(".wp-embed-share-dialog-close"),o=b.querySelectorAll(".wp-embed-share-input"),p=b.querySelectorAll(".wp-embed-share-tab-button button"),q=b.getElementsByTagName("a");if(o)for(k=0;k<o.length;k++)o[k].addEventListener("click",function(a){a.target.select()});if(m&&m.addEventListener("click",function(){d()}),n&&n.addEventListener("click",function(){e()}),p)for(k=0;k<p.length;k++)p[k].addEventListener("click",f),p[k].addEventListener("keydown",g);if(b.addEventListener("keydown",function(a){27===a.keyCode&&-1===l.className.indexOf("hidden")?e():9===a.keyCode&&h(a)},!1),a.self!==a.top)for(c("height",Math.ceil(b.body.getBoundingClientRect().height)),k=0;k<q.length;k++)q[k].addEventListener("click",j)}}function e(){a.self!==a.top&&(clearTimeout(f),f=setTimeout(function(){c("height",Math.ceil(b.body.getBoundingClientRect().height))},100))}var f,g=a.location.hash.replace(/.*secret=([\d\w]{10}).*/,"$1"),h=b.querySelector&&a.addEventListener,i=!1;h&&(b.documentElement.className=b.documentElement.className.replace(/\bno-js\b/,"")+" js",b.addEventListener("DOMContentLoaded",d,!1),a.addEventListener("load",d,!1),a.addEventListener("resize",e,!1))}(window,document);
+			!function(a,b){"use strict";function c(b,c){a.parent.postMessage({message:b,value:c,secret:g},"*")}function d(){function d(){l.className=l.className.replace("hidden",""),b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]').focus()}function e(){l.className+=" hidden",b.querySelector(".wp-embed-share-dialog-open").focus()}function f(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');c.setAttribute("aria-selected","false"),b.querySelector("#"+c.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),a.target.setAttribute("aria-selected","true"),b.querySelector("#"+a.target.getAttribute("aria-controls")).setAttribute("aria-hidden","false")}function g(a){var c,d,e=a.target,f=e.parentElement.previousElementSibling,g=e.parentElement.nextElementSibling;if(37===a.keyCode)c=f;else{if(39!==a.keyCode)return!1;c=g}"rtl"===b.documentElement.getAttribute("dir")&&(c=c===f?g:f),c&&(d=c.firstElementChild,e.setAttribute("tabindex","-1"),e.setAttribute("aria-selected",!1),b.querySelector("#"+e.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),d.setAttribute("tabindex","0"),d.setAttribute("aria-selected","true"),d.focus(),b.querySelector("#"+d.getAttribute("aria-controls")).setAttribute("aria-hidden","false"))}function h(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');n!==a.target||a.shiftKey?c===a.target&&a.shiftKey&&(n.focus(),a.preventDefault()):(c.focus(),a.preventDefault())}function i(a){var b,d=a.target;b=d.hasAttribute("href")?d.getAttribute("href"):d.parentElement.getAttribute("href"),c("link",b),a.preventDefault()}if(!k){k=!0;var j,l=b.querySelector(".wp-embed-share-dialog"),m=b.querySelector(".wp-embed-share-dialog-open"),n=b.querySelector(".wp-embed-share-dialog-close"),o=b.querySelectorAll(".wp-embed-share-input"),p=b.querySelectorAll(".wp-embed-share-tab-button button"),q=b.getElementsByTagName("a");if(o)for(j=0;j<o.length;j++)o[j].addEventListener("click",function(a){a.target.select()});if(m&&m.addEventListener("click",function(){d()}),n&&n.addEventListener("click",function(){e()}),p)for(j=0;j<p.length;j++)p[j].addEventListener("click",f),p[j].addEventListener("keydown",g);if(b.addEventListener("keydown",function(a){27===a.keyCode&&-1===l.className.indexOf("hidden")?e():9===a.keyCode&&h(a)},!1),a.self!==a.top)for(c("height",Math.ceil(b.body.getBoundingClientRect().height)),j=0;j<q.length;j++)q[j].addEventListener("click",i)}}function e(){a.self!==a.top&&(clearTimeout(i),i=setTimeout(function(){c("height",Math.ceil(b.body.getBoundingClientRect().height))},100))}function f(){a.self===a.top||g||(g=a.location.hash.replace(/.*secret=([\d\w]{10}).*/,"$1"),clearTimeout(h),h=setTimeout(function(){f()},100))}var g,h,i,j=b.querySelector&&a.addEventListener,k=!1;j&&(f(),b.documentElement.className=b.documentElement.className.replace(/\bno-js\b/,"")+" js",b.addEventListener("DOMContentLoaded",d,!1),a.addEventListener("load",d,!1),a.addEventListener("resize",e,!1))}(window,document);
 			<?php
 		}
 	?>
@@ -956,5 +956,5 @@ function print_embed_scripts() {
  * @return string The filtered content.
  */
 function _oembed_filter_feed_content( $content ) {
-	return str_replace( '<iframe sandbox="allow-scripts" security="restricted" style="display:none;"', '<iframe sandbox="allow-scripts" security="restricted"', $content );
+	return str_replace( '<iframe class="wp-embedded-content" sandbox="allow-scripts" security="restricted" style="display:none;"', '<iframe class="wp-embedded-content" sandbox="allow-scripts" security="restricted"', $content );
 }
diff --git a/wp-includes/js/wp-embed-template.js b/wp-includes/js/wp-embed-template.js
index b947465e94..ddcad26786 100644
--- a/wp-includes/js/wp-embed-template.js
+++ b/wp-includes/js/wp-embed-template.js
@@ -1,9 +1,10 @@
 (function ( window, document ) {
 	'use strict';
 
-	var secret = window.location.hash.replace( /.*secret=([\d\w]{10}).*/, '$1' ),
-		supportedBrowser = ( document.querySelector && window.addEventListener ),
+	var supportedBrowser = ( document.querySelector && window.addEventListener ),
 		loaded = false,
+		secret,
+		secretTimeout,
 		resizing;
 
 	function sendEmbedMessage( message, value ) {
@@ -177,7 +178,25 @@
 		}, 100 );
 	}
 
+	/**
+	 * Re-get the secret when it was added later on.
+	 */
+	function getSecret() {
+		if ( window.self === window.top || !!secret ) {
+			return;
+		}
+
+		secret = window.location.hash.replace( /.*secret=([\d\w]{10}).*/, '$1' );
+
+		clearTimeout( secretTimeout );
+
+		secretTimeout = setTimeout( function () {
+			getSecret();
+		}, 100 );
+	}
+
 	if ( supportedBrowser ) {
+		getSecret();
 		document.documentElement.className = document.documentElement.className.replace( /\bno-js\b/, '' ) + ' js';
 		document.addEventListener( 'DOMContentLoaded', onLoad, false );
 		window.addEventListener( 'load', onLoad, false );
diff --git a/wp-includes/js/wp-embed-template.min.js b/wp-includes/js/wp-embed-template.min.js
index 7d4348ac8b..7f8c1b5b42 100644
--- a/wp-includes/js/wp-embed-template.min.js
+++ b/wp-includes/js/wp-embed-template.min.js
@@ -1 +1 @@
-!function(a,b){"use strict";function c(b,c){a.parent.postMessage({message:b,value:c,secret:g},"*")}function d(){function d(){l.className=l.className.replace("hidden",""),b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]').focus()}function e(){l.className+=" hidden",b.querySelector(".wp-embed-share-dialog-open").focus()}function f(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');c.setAttribute("aria-selected","false"),b.querySelector("#"+c.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),a.target.setAttribute("aria-selected","true"),b.querySelector("#"+a.target.getAttribute("aria-controls")).setAttribute("aria-hidden","false")}function g(a){var c,d,e=a.target,f=e.parentElement.previousElementSibling,g=e.parentElement.nextElementSibling;if(37===a.keyCode)c=f;else{if(39!==a.keyCode)return!1;c=g}"rtl"===b.documentElement.getAttribute("dir")&&(c=c===f?g:f),c&&(d=c.firstElementChild,e.setAttribute("tabindex","-1"),e.setAttribute("aria-selected",!1),b.querySelector("#"+e.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),d.setAttribute("tabindex","0"),d.setAttribute("aria-selected","true"),d.focus(),b.querySelector("#"+d.getAttribute("aria-controls")).setAttribute("aria-hidden","false"))}function h(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');n!==a.target||a.shiftKey?c===a.target&&a.shiftKey&&(n.focus(),a.preventDefault()):(c.focus(),a.preventDefault())}function j(a){var b,d=a.target;b=d.hasAttribute("href")?d.getAttribute("href"):d.parentElement.getAttribute("href"),c("link",b),a.preventDefault()}if(!i){i=!0;var k,l=b.querySelector(".wp-embed-share-dialog"),m=b.querySelector(".wp-embed-share-dialog-open"),n=b.querySelector(".wp-embed-share-dialog-close"),o=b.querySelectorAll(".wp-embed-share-input"),p=b.querySelectorAll(".wp-embed-share-tab-button button"),q=b.getElementsByTagName("a");if(o)for(k=0;k<o.length;k++)o[k].addEventListener("click",function(a){a.target.select()});if(m&&m.addEventListener("click",function(){d()}),n&&n.addEventListener("click",function(){e()}),p)for(k=0;k<p.length;k++)p[k].addEventListener("click",f),p[k].addEventListener("keydown",g);if(b.addEventListener("keydown",function(a){27===a.keyCode&&-1===l.className.indexOf("hidden")?e():9===a.keyCode&&h(a)},!1),a.self!==a.top)for(c("height",Math.ceil(b.body.getBoundingClientRect().height)),k=0;k<q.length;k++)q[k].addEventListener("click",j)}}function e(){a.self!==a.top&&(clearTimeout(f),f=setTimeout(function(){c("height",Math.ceil(b.body.getBoundingClientRect().height))},100))}var f,g=a.location.hash.replace(/.*secret=([\d\w]{10}).*/,"$1"),h=b.querySelector&&a.addEventListener,i=!1;h&&(b.documentElement.className=b.documentElement.className.replace(/\bno-js\b/,"")+" js",b.addEventListener("DOMContentLoaded",d,!1),a.addEventListener("load",d,!1),a.addEventListener("resize",e,!1))}(window,document);
\ No newline at end of file
+!function(a,b){"use strict";function c(b,c){a.parent.postMessage({message:b,value:c,secret:g},"*")}function d(){function d(){l.className=l.className.replace("hidden",""),b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]').focus()}function e(){l.className+=" hidden",b.querySelector(".wp-embed-share-dialog-open").focus()}function f(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');c.setAttribute("aria-selected","false"),b.querySelector("#"+c.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),a.target.setAttribute("aria-selected","true"),b.querySelector("#"+a.target.getAttribute("aria-controls")).setAttribute("aria-hidden","false")}function g(a){var c,d,e=a.target,f=e.parentElement.previousElementSibling,g=e.parentElement.nextElementSibling;if(37===a.keyCode)c=f;else{if(39!==a.keyCode)return!1;c=g}"rtl"===b.documentElement.getAttribute("dir")&&(c=c===f?g:f),c&&(d=c.firstElementChild,e.setAttribute("tabindex","-1"),e.setAttribute("aria-selected",!1),b.querySelector("#"+e.getAttribute("aria-controls")).setAttribute("aria-hidden","true"),d.setAttribute("tabindex","0"),d.setAttribute("aria-selected","true"),d.focus(),b.querySelector("#"+d.getAttribute("aria-controls")).setAttribute("aria-hidden","false"))}function h(a){var c=b.querySelector('.wp-embed-share-tab-button [aria-selected="true"]');n!==a.target||a.shiftKey?c===a.target&&a.shiftKey&&(n.focus(),a.preventDefault()):(c.focus(),a.preventDefault())}function i(a){var b,d=a.target;b=d.hasAttribute("href")?d.getAttribute("href"):d.parentElement.getAttribute("href"),c("link",b),a.preventDefault()}if(!k){k=!0;var j,l=b.querySelector(".wp-embed-share-dialog"),m=b.querySelector(".wp-embed-share-dialog-open"),n=b.querySelector(".wp-embed-share-dialog-close"),o=b.querySelectorAll(".wp-embed-share-input"),p=b.querySelectorAll(".wp-embed-share-tab-button button"),q=b.getElementsByTagName("a");if(o)for(j=0;j<o.length;j++)o[j].addEventListener("click",function(a){a.target.select()});if(m&&m.addEventListener("click",function(){d()}),n&&n.addEventListener("click",function(){e()}),p)for(j=0;j<p.length;j++)p[j].addEventListener("click",f),p[j].addEventListener("keydown",g);if(b.addEventListener("keydown",function(a){27===a.keyCode&&-1===l.className.indexOf("hidden")?e():9===a.keyCode&&h(a)},!1),a.self!==a.top)for(c("height",Math.ceil(b.body.getBoundingClientRect().height)),j=0;j<q.length;j++)q[j].addEventListener("click",i)}}function e(){a.self!==a.top&&(clearTimeout(i),i=setTimeout(function(){c("height",Math.ceil(b.body.getBoundingClientRect().height))},100))}function f(){a.self===a.top||g||(g=a.location.hash.replace(/.*secret=([\d\w]{10}).*/,"$1"),clearTimeout(h),h=setTimeout(function(){f()},100))}var g,h,i,j=b.querySelector&&a.addEventListener,k=!1;j&&(f(),b.documentElement.className=b.documentElement.className.replace(/\bno-js\b/,"")+" js",b.addEventListener("DOMContentLoaded",d,!1),a.addEventListener("load",d,!1),a.addEventListener("resize",e,!1))}(window,document);
\ No newline at end of file
diff --git a/wp-includes/js/wp-embed.js b/wp-includes/js/wp-embed.js
index ea7f5eb207..8223102381 100644
--- a/wp-includes/js/wp-embed.js
+++ b/wp-includes/js/wp-embed.js
@@ -64,17 +64,31 @@
 		loaded = true;
 
 		var isIE10 = -1 !== navigator.appVersion.indexOf( 'MSIE 10' ),
-			isIE11 = !!navigator.userAgent.match( /Trident.*rv\:11\./ ),
-			iframes, iframeClone, i;
+			isIE11 = !!navigator.userAgent.match( /Trident.*rv:11\./ ),
+			iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),
+			blockquotes = document.querySelectorAll( 'blockquote.wp-embedded-content' ),
+			iframeClone, i, source, secret;
 
-		/* Remove security attribute from iframes in IE10 and IE11. */
-		if ( isIE10 || isIE11 ) {
-			iframes = document.querySelectorAll( '.wp-embedded-content[security]' );
+		for ( i = 0; i < blockquotes.length; i++ ) {
+			blockquotes[ i ].style.display = 'none';
+		}
 
-			for ( i = 0; i < iframes.length; i++ ) {
-				iframeClone = iframes[ i ].cloneNode( true );
+		for ( i = 0; i < iframes.length; i++ ) {
+			source = iframes[ i ];
+			source.style.display = '';
+
+			if ( !source.getAttribute( 'data-secret' ) ) {
+				/* Add secret to iframe */
+				secret = Math.random().toString( 36 ).substr( 2, 10 );
+				source.src += '#?secret=' + secret;
+				source.setAttribute( 'data-secret', secret );
+			}
+
+			/* Remove security attribute from iframes in IE10 and IE11. */
+			if ( ( isIE10 || isIE11 ) && !!source.getAttribute( 'security' ) ) {
+				iframeClone = source.cloneNode( true );
 				iframeClone.removeAttribute( 'security' );
-				iframes[ i ].parentNode.replaceChild( iframeClone, iframes[ i ] );
+				source.parentNode.replaceChild( iframeClone, source );
 			}
 		}
 	}
diff --git a/wp-includes/js/wp-embed.min.js b/wp-includes/js/wp-embed.min.js
index 8d4c32d98f..d249f41d8a 100644
--- a/wp-includes/js/wp-embed.min.js
+++ b/wp-includes/js/wp-embed.min.js
@@ -1 +1 @@
-!function(a,b){"use strict";function c(){if(!e){e=!0;var a,c,d,f=-1!==navigator.appVersion.indexOf("MSIE 10"),g=!!navigator.userAgent.match(/Trident.*rv\:11\./);if(f||g)for(a=b.querySelectorAll(".wp-embedded-content[security]"),d=0;d<a.length;d++)c=a[d].cloneNode(!0),c.removeAttribute("security"),a[d].parentNode.replaceChild(c,a[d])}}var d=b.querySelector&&a.addEventListener,e=!1;a.wp=a.wp||{},a.wp.receiveEmbedMessage||(a.wp.receiveEmbedMessage=function(c){var d=c.data;if(d.secret||d.message||d.value){var e,f,g,h,i,j=b.querySelectorAll('iframe[data-secret="'+d.secret+'"]'),k=b.querySelectorAll('blockquote[data-secret="'+d.secret+'"]');for(e=0;e<k.length;e++)k[e].style.display="none";for(e=0;e<j.length;e++)f=j[e],f.style.display="","height"===d.message&&(g=parseInt(d.value,10),g>1e3?g=1e3:200>~~g&&(g=200),f.height=g),"link"===d.message&&(h=b.createElement("a"),i=b.createElement("a"),h.href=f.getAttribute("src"),i.href=d.value,i.host===h.host&&b.activeElement===f&&(a.top.location.href=d.value))}},d&&(a.addEventListener("message",a.wp.receiveEmbedMessage,!1),b.addEventListener("DOMContentLoaded",c,!1),a.addEventListener("load",c,!1)))}(window,document);
\ No newline at end of file
+!function(a,b){"use strict";function c(){if(!e){e=!0;var a,c,d,f,g=-1!==navigator.appVersion.indexOf("MSIE 10"),h=!!navigator.userAgent.match(/Trident.*rv:11\./),i=b.querySelectorAll("iframe.wp-embedded-content"),j=b.querySelectorAll("blockquote.wp-embedded-content");for(c=0;c<j.length;c++)j[c].style.display="none";for(c=0;c<i.length;c++)d=i[c],d.style.display="",d.getAttribute("data-secret")||(f=Math.random().toString(36).substr(2,10),d.src+="#?secret="+f,d.setAttribute("data-secret",f)),(g||h)&&d.getAttribute("security")&&(a=d.cloneNode(!0),a.removeAttribute("security"),d.parentNode.replaceChild(a,d))}}var d=b.querySelector&&a.addEventListener,e=!1;a.wp=a.wp||{},a.wp.receiveEmbedMessage||(a.wp.receiveEmbedMessage=function(c){var d=c.data;if(d.secret||d.message||d.value){var e,f,g,h,i,j=b.querySelectorAll('iframe[data-secret="'+d.secret+'"]'),k=b.querySelectorAll('blockquote[data-secret="'+d.secret+'"]');for(e=0;e<k.length;e++)k[e].style.display="none";for(e=0;e<j.length;e++)f=j[e],f.style.display="","height"===d.message&&(g=parseInt(d.value,10),g>1e3?g=1e3:200>~~g&&(g=200),f.height=g),"link"===d.message&&(h=b.createElement("a"),i=b.createElement("a"),h.href=f.getAttribute("src"),i.href=d.value,i.host===h.host&&b.activeElement===f&&(a.top.location.href=d.value))}},d&&(a.addEventListener("message",a.wp.receiveEmbedMessage,!1),b.addEventListener("DOMContentLoaded",c,!1),a.addEventListener("load",c,!1)))}(window,document);
\ No newline at end of file
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ef3eeef3c4..03b883773f 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-beta3-35576';
+$wp_version = '4.4-beta3-35577';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.