XCLASS of EXT:realurl to avoid issues with FB parameter fbclid

ConfigurationReader.php

<?php declare(strict_types=1);

// in your sitepackage Classes/Xclass/Realurl/ConfigurationReader.php

namespace Vendor\SitePackage\Xclass\Realurl;

class ConfigurationReader extends \DmitryDulepov\Realurl\Configuration\ConfigurationReader {

    protected $defaultValues = array(
        'cache/banUrlsRegExp' => '/tx_solr|tx_indexedsearch|tx_kesearch|(?:^|\?|&)q=/',
        'cache/ignoredGetParametersRegExp' => '/^(?:gclid|utm_(?:source|medium|campaign|term|content)|pk_campaign|pk_kwd|TSFE_ADMIN_PANEL.*)$/',
        // xclass start
        'cache/ignoredGetParametersRegExp' => '/^(?:gclid|utm_(?:source|medium|campaign|term|content)|fbclid|pk_campaign|pk_kwd|TSFE_ADMIN_PANEL.*)$/',
        // xclass end
        'fileName/acceptHTMLsuffix' => TRUE,
        'fileName/defaultToHTMLsuffixOnPrev' => FALSE,
        'init/appendMissingSlash' => 'ifNotFile,redirect[301]',
        'init/defaultLanguageUid' => 0,
        'init/emptySegmentValue' => '',
        'pagePath/spaceCharacter' => '-', // undocumented & deprecated!
    );
}

ext_localconf.php

<?php

// in ext_localconf.php of your site package
$GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects'][\DmitryDulepov\Realurl\Configuration\ConfigurationReader::class] = [
 'className' => \Vendor\SitePackage\Xclass\Realurl\ConfigurationReader::class,
];