{"version":"1.0","provider_name":"Information Technology Systems Status Archive","provider_url":"https:\/\/blogarchive.utc.edu\/itstatus","author_name":"Jamie L Walden","author_url":"https:\/\/blogarchive.utc.edu\/itstatus\/author\/tkf366\/","title":"Wireless Casting (Vivi) Issues on Apple Devices - Information Technology Systems Status Archive","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"vCrxfff9rv\"><a href=\"https:\/\/blogarchive.utc.edu\/itstatus\/wireless-casting-vivi-issues-on-apple-devices\/\">Wireless Casting (Vivi) Issues on Apple Devices<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/blogarchive.utc.edu\/itstatus\/wireless-casting-vivi-issues-on-apple-devices\/embed\/#?secret=vCrxfff9rv\" width=\"600\" height=\"338\" title=\"&#8220;Wireless Casting (Vivi) Issues on Apple Devices&#8221; &#8212; Information Technology Systems Status Archive\" data-secret=\"vCrxfff9rv\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/**\n * WordPress inline HTML embed\n *\n * @since 4.4.0\n * @output wp-includes\/js\/wp-embed.js\n *\n * Single line comments should not be used since they will break\n * the script when inlined in get_post_embed_html(), specifically\n * when the comments are not stripped out due to SCRIPT_DEBUG\n * being turned on.\n *\/\n(function ( window, document ) {\n\t'use strict';\n\n\t\/* Abort for ancient browsers. *\/\n\tif ( ! document.querySelector || ! window.addEventListener || typeof URL === 'undefined' ) {\n\t\treturn;\n\t}\n\n\t\/** @namespace wp *\/\n\twindow.wp = window.wp || {};\n\n\t\/* Abort if script was already executed. *\/\n\tif ( !! window.wp.receiveEmbedMessage ) {\n\t\treturn;\n\t}\n\n\t\/**\n\t * Receive embed message.\n\t *\n\t * @param {MessageEvent} e\n\t *\/\n\twindow.wp.receiveEmbedMessage = function( e ) {\n\t\tvar data = e.data;\n\n\t\t\/* Verify shape of message. *\/\n\t\tif (\n\t\t\t! ( data || data.secret || data.message || data.value ) ||\n\t\t\t\/[^a-zA-Z0-9]\/.test( data.secret )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar iframes = document.querySelectorAll( 'iframe[data-secret=\"' + data.secret + '\"]' ),\n\t\t\tblockquotes = document.querySelectorAll( 'blockquote[data-secret=\"' + data.secret + '\"]' ),\n\t\t\tallowedProtocols = new RegExp( '^https?:$', 'i' ),\n\t\t\ti, source, height, sourceURL, targetURL;\n\n\t\tfor ( i = 0; i < blockquotes.length; i++ ) {\n\t\t\tblockquotes[ i ].style.display = 'none';\n\t\t}\n\n\t\tfor ( i = 0; i < iframes.length; i++ ) {\n\t\t\tsource = iframes[ i ];\n\n\t\t\tif ( e.source !== source.contentWindow ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tsource.removeAttribute( 'style' );\n\n\t\t\tif ( 'height' === data.message ) {\n\t\t\t\t\/* Resize the iframe on request. *\/\n\t\t\t\theight = parseInt( data.value, 10 );\n\t\t\t\tif ( height > 1000 ) {\n\t\t\t\t\theight = 1000;\n\t\t\t\t} else if ( ~~height < 200 ) {\n\t\t\t\t\theight = 200;\n\t\t\t\t}\n\n\t\t\t\tsource.height = height;\n\t\t\t} else if ( 'link' === data.message ) {\n\t\t\t\t\/* Link to a specific URL on request. *\/\n\t\t\t\tsourceURL = new URL( source.getAttribute( 'src' ) );\n\t\t\t\ttargetURL = new URL( data.value );\n\n\t\t\t\tif (\n\t\t\t\t\tallowedProtocols.test( targetURL.protocol ) &&\n\t\t\t\t\ttargetURL.host === sourceURL.host &&\n\t\t\t\t\tdocument.activeElement === source\n\t\t\t\t) {\n\t\t\t\t\twindow.top.location.href = data.value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n\n\tfunction onLoad() {\n\t\tvar iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),\n\t\t\ti, source, secret;\n\n\t\tfor ( i = 0; i < iframes.length; i++ ) {\n\t\t\t\/** @var {IframeElement} *\/\n\t\t\tsource = iframes[ i ];\n\n\t\t\tsecret = source.getAttribute( 'data-secret' );\n\t\t\tif ( ! secret ) {\n\t\t\t\t\/* Add secret to iframe *\/\n\t\t\t\tsecret = Math.random().toString( 36 ).substring( 2, 12 );\n\t\t\t\tsource.src += '#?secret=' + secret;\n\t\t\t\tsource.setAttribute( 'data-secret', secret );\n\t\t\t}\n\n\t\t\t\/*\n\t\t\t * Let post embed window know that the parent is ready for receiving the height message, in case the iframe\n\t\t\t * loaded before wp-embed.js was loaded. When the ready message is received by the post embed window, the\n\t\t\t * window will then (re-)send the height message right away.\n\t\t\t *\/\n\t\t\tsource.contentWindow.postMessage( {\n\t\t\t\tmessage: 'ready',\n\t\t\t\tsecret: secret\n\t\t\t}, '*' );\n\t\t}\n\t}\n\n\twindow.addEventListener( 'message', window.wp.receiveEmbedMessage, false );\n\tdocument.addEventListener( 'DOMContentLoaded', onLoad, false );\n})( window, document );\n\/\/# sourceURL=https:\/\/blogarchive.utc.edu\/itstatus\/wp-includes\/js\/wp-embed.js\n\/* ]]> *\/\n<\/script>\n","description":"Issue Reported on September 8, 2025: We\u2019re aware of an issue affecting Vivi wireless casting when used with Apple computers in classrooms and conference rooms. The screen may freeze or stop updating during use. Currently, this issue appears to only affect Apple devices such as MacBooks. We\u2019re actively investigating and have contacted Vivi support for&hellip;"}