Typo3 Plugin exception custom handling

ProductionExceptionHandler.php

<?php
namespace BinaryBay\BbBoilerplate\ContentObject\Exception;

use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\HttpUtility;
use TYPO3\CMS\Extbase\Utility\DebuggerUtility;
use TYPO3\CMS\Frontend\ContentObject\AbstractContentObject;

class ProductionExceptionHandler extends \TYPO3\CMS\Frontend\ContentObject\Exception\ProductionExceptionHandler {

    /**
     *  array
     */
    protected $configuration = array();

    /**
     *  array $configuration
     */
    public function __construct(array $configuration = array()) {
        parent::__construct($configuration);
    }

    /**
     * Handles exceptions thrown during rendering of content objects
     * The handler can decide whether to re-throw the exception or
     * return a nice error message for production context.
     *
     *  \Exception $exception
     *  AbstractContentObject $contentObject
     *  array $contentObjectConfiguration
     *  string
     *  \Exception
     */
    public function handle(\Exception $exception, AbstractContentObject $contentObject = null, $contentObjectConfiguration = array()) {

        if ( GeneralUtility::getApplicationContext() == 'Production' ) {
            if (in_array($contentObjectConfiguration['extensionName'], $this->configuration['extensions.'])) {
                $errors = array(1297759968, 1, 1298012500);
                if (in_array($exception->getCode(), $errors)) {
                    $this->logException($exception, $exception->getMessage(), date('YmdHis', $_SERVER['REQUEST_TIME']) . GeneralUtility::getRandomHexString(8));
                    $GLOBALS['TSFE']->pageNotFoundAndExit($exception->getMessage(), HttpUtility::HTTP_STATUS_404);
                }
            }
            else {
                return parent::handle($exception, $contentObject, $contentObjectConfiguration);
            }
        }
        else {
            throw $exception;
        }
    }
}

Setup.ts

config {
    contentObjectExceptionHandler = BinaryBay\BbBoilerplate\ContentObject\Exception\ProductionExceptionHandler
  	contentObjectExceptionHandler.extensions {
    		10 = BbEvents
    		20 = BbPress
  	}
}