MediaWiki:Common.js

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/*Test fix*/
mw.hook('wikipage.content').add(function($content) {
    $content.find('table.wikitable').each(function() {
        var $table = $(this);
        // Only wrap if not already wrapped (prevents double-wrapping)
        if (!$table.parent().hasClass('table-fix-wrapper')) {
            $table.wrap('<div class="table-fix-wrapper"></div>');
        }
    });
});