diff options
| -rw-r--r-- | js/reveal.js | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/js/reveal.js b/js/reveal.js index 42edf90..1238f9f 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -575,11 +575,16 @@ var Reveal = (function(){ if( config.postMessage ) { window.addEventListener( 'message', function ( event ) { - var data = JSON.parse( event.data ); - var method = Reveal[data.method]; + var data = event.data; - if( typeof method === 'function' ) { - method.apply( Reveal, data.args ); + // Make sure we're dealing with JSON + if( data.charAt( 0 ) === '{' && data.charAt( data.length - 1 ) === '}' ) { + data = JSON.parse( data ); + + // Check if the requested method can be found + if( data.method && typeof Reveal[data.method] === 'function' ) { + Reveal[data.method].apply( Reveal, data.args ); + } } }, false ); } |