https://exploreshizuoka.jp/wp-content/themes/Newspaper-child/js/iframe.js?ver=6ac25de3d079a

1/**
2 * Overwrite/bypass <iframe></iframe> height limit imposed by Wordpress
3 * Original idea from bypass-iframe-height-limit plugin by Justin Carboneau
4 * Adapted from original /wp-includes/js/wp-embed.js
5 */
6(function(window, document) {
7    'use strict';
8
9    var supportedBrowser = false;
10
11    // Verify if browser is supported
12    if (document.querySelector) {
13        if (window.addEventListener) {
14            supportedBrowser = true;
15        }
16    }
17
18    /** @namespace owihl */
19    window.owihl = window.owihl || {};
20
21    if (!!window.owihl.OverwriteIframeHeightLimit) {
22        return;
23    }
24
25    window.owihl.OverwriteIframeHeightLimit = function(e) {
26		var data = e.data;
27		
28		// Check if all needed data is provided
29        if (!(data.secret || data.message || data.value)) {
30            return;
31        }
32
33		// Check if data secret is alphanumeric
34        if (/[^a-zA-Z0-9]/.test(data.secret)) {
35            return;
36        }
37
38		// Select all iframes
39        var iframes = document.querySelectorAll('iframe[data-secret="' + data.secret + '"]'),
40            i, source;
41
42        for (i = 0; i < iframes.length; i++) {
43            source = iframes[i];
44
45            if (e.source !== source.contentWindow) {
46                continue;
47            }
48
49            if ('height' === data.message) {
50                // wp-embed.js clears any added inline styls, that's why we need to create a style element
51                var styleElem = document.getElementById('owihl-style-' + source.getAttribute('data-secret'));
52                var css = 'iframe.wp-embedded-content[data-secret="' + source.getAttribute('data-secret') +
53                    '"] { height: ' + parseInt(data.value, 10) + 'px; }';
54
55                if (styleElem) {
56                    styleElem.innerHTML = css;
57                } else {
58                    var head = document.head || document.getElementsByTagName('head')[0],
59                        style = document.createElement('style');
60
61                    style.type = 'text/css';
62                    style.id = 'owihl-style-' + source.getAttribute('data-secret');
63                    style.appendChild(document.createTextNode(css));
64
65                    head.appendChild(style);
66                }
67            }
68
69        }
70    };
71
72    if (supportedBrowser) {
73        window.addEventListener('message', window.owihl.OverwriteIframeHeightLimit, false);
74    } else {
75        console.log('Wordpress <iframe> limit is still present because the browser is not supported.');
76	console.log('For more information : https://medium.com/@wlarch/overwrite-and-bypass-wordpress-iframe-height-dimension-limit-using-javascript-9d5035c89e37');
77    }
78})(window, document);