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fix getAttribute exception in notes plugin #3285

This commit is contained in:
hakimel 2022-10-17 08:51:44 +02:00
parent 468132320d
commit fb68f1c389
3 changed files with 3 additions and 3 deletions
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2
plugin/notes/notes.esm.js
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2
plugin/notes/notes.js
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2
plugin/notes/plugin.js
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@ -148,7 +148,7 @@ const Plugin = () => {
// Look for notes defined in an aside element // Look for notes defined in an aside element
if( notesElements ) { if( notesElements ) {
messageData.notes = Array.from(notesElements).map( notesElement => notesElement.innerHTML ).join( '\n' ); messageData.notes = Array.from(notesElements).map( notesElement => notesElement.innerHTML ).join( '\n' );
messageData.markdown = typeof notesElements[0].getAttribute( 'data-markdown' ) === 'string'; messageData.markdown = notesElements[0] && typeof notesElements[0].getAttribute( 'data-markdown' ) === 'string';
} }
speakerWindow.postMessage( JSON.stringify( messageData ), '*' ); speakerWindow.postMessage( JSON.stringify( messageData ), '*' );