MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */

$(document).ready(function() {
    // Detect all links generated by the template
    $('a').once('popup-link').each(function() {
        var href = $(this).attr('href');

        // Add your URL filter or class check if needed
        // Example: only popup for external links
        if (href && href.startsWith('http')) {
            $(this).on('click', function(e) {
                e.preventDefault();
                window.open(this.href, 'popupWindow', 'width=600,height=400,scrollbars=yes,resizable=yes');
            });
        }
    });
});