Add aria-hidden to button icons
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@@ -63,7 +63,7 @@ export default class TableOfContents {
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elem.id = 'dialogToc';
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let tocHtml = '<div class="topRightActionButtons">';
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tocHtml += '<button is="paper-icon-button-light" class="autoSize bookplayerButton btnBookplayerTocClose hide-mouse-idle-tv" tabindex="-1"><span class="material-icons bookplayerButtonIcon close"></span></button>';
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tocHtml += '<button is="paper-icon-button-light" class="autoSize bookplayerButton btnBookplayerTocClose hide-mouse-idle-tv" tabindex="-1"><span class="material-icons bookplayerButtonIcon close" aria-hidden="true"></span></button>';
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tocHtml += '</div>';
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tocHtml += '<ul class="toc">';
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rendition.book.navigation.forEach((chapter) => {
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