rewrite youtube iframe embeds to force ?enablejsapi=1 (fixes #856)
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js/reveal.js
17
js/reveal.js
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@ -1959,6 +1959,8 @@
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updateSlideNumber();
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updateSlidesVisibility();
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formatEmbeddedContent();
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}
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/**
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@ -2542,6 +2544,21 @@
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}
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/**
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* Enforces origin-specific format rules for embedded content.
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*/
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function formatEmbeddedContent() {
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// YouTube frames must include "?enablejsapi=1"
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toArray( dom.slides.querySelectorAll( 'iframe[src*="youtube.com/embed/"]' ) ).forEach( function( el ) {
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var src = el.getAttribute( 'src' );
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if( !/enablejsapi\=1/gi.test( src ) ) {
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el.setAttribute( 'src', src + ( !/\?/.test( src ) ? '?' : '' ) + 'enablejsapi=1' );
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}
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});
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}
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/**
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* Start playback of any embedded content inside of
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* the targeted slide.
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