public function onKernelException(ExceptionEvent $event)
{
    $exception = $event->getException();
    $message = $exception->getMessage();
    $redirectUrl = null;
    switch (true) {
        case ($exception->getSeverity() == E_NOTICE || $exception->getSeverity == E_STRICT):
            // Here is my issue... I don't want to reload/redirect... I want to continue normal execution
            break;
        case $exception instanceof AccessDeniedException:
            $this->stopBugsnagPipe();
            break;
        // Etc. etc. other cases.
    }
}