https://fenduq.com/wp-includes/js/wp-embed.js?ver=5.3.2

1/**
2 * WordPress inline HTML embed
3 *
4 * @since 4.4.0
5 * @output wp-includes/js/wp-embed.js
6 *
7 * This file cannot have ampersands in it. This is to ensure
8 * it can be embedded in older versions of WordPress.
9 * See https://core.trac.wordpress.org/changeset/35708.
10 */
11(function ( window, document ) {
12	'use strict';
13
14	var supportedBrowser = false,
15		loaded = false;
16
17		if ( document.querySelector ) {
18			if ( window.addEventListener ) {
19				supportedBrowser = true;
20			}
21		}
22
23	/** @namespace wp */
24	window.wp = window.wp || {};
25
26	if ( !! window.wp.receiveEmbedMessage ) {
27		return;
28	}
29
30	window.wp.receiveEmbedMessage = function( e ) {
31		var data = e.data;
32
33		if ( ! data ) {
34			return;
35		}
36
37		if ( ! ( data.secret || data.message || data.value ) ) {
38			return;
39		}
40
41		if ( /[^a-zA-Z0-9]/.test( data.secret ) ) {
42			return;
43		}
44
45		var iframes = document.querySelectorAll( 'iframe[data-secret="' + data.secret + '"]' ),
46			blockquotes = document.querySelectorAll( 'blockquote[data-secret="' + data.secret + '"]' ),
47			i, source, height, sourceURL, targetURL;
48
49		for ( i = 0; i < blockquotes.length; i++ ) {
50			blockquotes[ i ].style.display = 'none';
51		}
52
53		for ( i = 0; i < iframes.length; i++ ) {
54			source = iframes[ i ];
55
56			if ( e.source !== source.contentWindow ) {
57				continue;
58			}
59
60			source.removeAttribute( 'style' );
61
62			/* Resize the iframe on request. */
63			if ( 'height' === data.message ) {
64				height = parseInt( data.value, 10 );
65				if ( height > 1000 ) {
66					height = 1000;
67				} else if ( ~~height < 200 ) {
68					height = 200;
69				}
70
71				source.height = height;
72			}
73
74			/* Link to a specific URL on request. */
75			if ( 'link' === data.message ) {
76				sourceURL = document.createElement( 'a' );
77				targetURL = document.createElement( 'a' );
78
79				sourceURL.href = source.getAttribute( 'src' );
80				targetURL.href = data.value;
81
82				/* Only continue if link hostname matches iframe's hostname. */
83				if ( targetURL.host === sourceURL.host ) {
84					if ( document.activeElement === source ) {
85						window.top.location.href = data.value;
86					}
87				}
88			}
89		}
90	};
91
92	function onLoad() {
93		if ( loaded ) {
94			return;
95		}
96
97		loaded = true;
98
99		var isIE10 = -1 !== navigator.appVersion.indexOf( 'MSIE 10' ),
100			isIE11 = !!navigator.userAgent.match( /Trident.*rv:11\./ ),
101			iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),
102			iframeClone, i, source, secret;
103
104		for ( i = 0; i < iframes.length; i++ ) {
105			source = iframes[ i ];
106
107			if ( ! source.getAttribute( 'data-secret' ) ) {
108				/* Add secret to iframe */
109				secret = Math.random().toString( 36 ).substr( 2, 10 );
110				source.src += '#?secret=' + secret;

111				source.setAttribute( 'data-secret', secret );
112			}
113
114			/* Remove security attribute from iframes in IE10 and IE11. */
115			if ( ( isIE10 || isIE11 ) ) {
116				iframeClone = source.cloneNode( true );
117				iframeClone.removeAttribute( 'security' );
118				source.parentNode.replaceChild( iframeClone, source );
119			}
120		}
121	}
122
123	if ( supportedBrowser ) {
124		window.addEventListener( 'message', window.wp.receiveEmbedMessage, false );
125		document.addEventListener( 'DOMContentLoaded', onLoad, false );
126		window.addEventListener( 'load', onLoad, false );
127	}
128})( window, document );