Pa11y-ci Reporter custom filter

pa11y-ci-reporter-custom-filter.js

// Assumes jQuery is already defined on the page. 
// Try a tampermonnkey script to define jQuery like this: https://gist.github.com/anevins12/e394718db5af815da397e6702d552c3a

(function() {
    const invalidErrors = ['Set these yourself: Use the contents of the H2 element that is in the individal error page'];
    const $listingErrors = $('.page');

    $listingErrors.each(function() {
        const $listingError = $(this);
        const $listingErrorCount = $listingError.find('.counts .error');
        const $link = $('.pageLink', $listingError);

        $.ajax({
            url: $link.attr('href'),
            context: $(this),
            async: false,
        })
        .done(function(data) {
            const $dom = $(data);
            const $errors = $('.error', $dom);
            var errorCount = $errors.length;

            // Set error index as though it was at 0.
            errorCount--;

            $.each($errors, function() {
                const errorText = $('h2', this).text();
                
                if (invalidErrors.includes(errorText)) {
                    errorCount = errorCount - 1;
                    $listingErrorCount.html(errorCount);
                }
            });
        });
        
        if ($listingErrorCount.text() === '0') {
            $listingError.hide();
        }
    });
})();