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| author | Hakim El Hattab <hakim.elhattab@gmail.com> | 2016-07-04 13:32:03 +0200 |
|---|---|---|
| committer | Hakim El Hattab <hakim.elhattab@gmail.com> | 2016-07-04 13:32:03 +0200 |
| commit | ab2bb869a30cc10b2e4c064fd26c3790670b0c22 (patch) | |
| tree | a4f198ef06f6f57e184a8847bbc671de41429a50 /js | |
| parent | 6447b59ac51c3f399ae061ecb4e9275fc165f967 (diff) | |
| download | perl-software-in-gnu-guix-ab2bb869a30cc10b2e4c064fd26c3790670b0c22.tar perl-software-in-gnu-guix-ab2bb869a30cc10b2e4c064fd26c3790670b0c22.tar.gz | |
null check to avoid occasional npe
Diffstat (limited to 'js')
| -rw-r--r-- | js/reveal.js | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/js/reveal.js b/js/reveal.js index c37566a..473a616 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -3090,17 +3090,21 @@ var iframe = event.target; - // YouTube postMessage API - if( /youtube\.com\/embed\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) { - iframe.contentWindow.postMessage( '{"event":"command","func":"playVideo","args":""}', '*' ); - } - // Vimeo postMessage API - else if( /player\.vimeo\.com\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) { - iframe.contentWindow.postMessage( '{"method":"play"}', '*' ); - } - // Generic postMessage API - else { - iframe.contentWindow.postMessage( 'slide:start', '*' ); + if( iframe && iframe.contentWindow ) { + + // YouTube postMessage API + if( /youtube\.com\/embed\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) { + iframe.contentWindow.postMessage( '{"event":"command","func":"playVideo","args":""}', '*' ); + } + // Vimeo postMessage API + else if( /player\.vimeo\.com\//.test( iframe.getAttribute( 'src' ) ) && iframe.hasAttribute( 'data-autoplay' ) ) { + iframe.contentWindow.postMessage( '{"method":"play"}', '*' ); + } + // Generic postMessage API + else { + iframe.contentWindow.postMessage( 'slide:start', '*' ); + } + } } |