public function getAjaxUrl($specialParams) { $params = ['id' => $GLOBALS['TSFE']->id, 'L' => $GLOBALS['TSFE']->sys_language_uid, 'randomID' => $this->globals->getRandomID(), 'field' => $field, 'uploadedFileName' => $uploadedFileName]; $params = array_merge($params, $specialParams); return \TYPO3\CMS\Core\Utility\GeneralUtility::getIndpEnv('TYPO3_SITE_PATH') . 'index.php?' . \TYPO3\CMS\Core\Utility\GeneralUtility::implodeArrayForUrl('', $params); }