AllowMissingPrefixForEncryptCookies

EncryptCookies.php

<?php
    /**
     * The name of the cookies that are safe not to be protected by value prefix.
     *
     * @see https://blog.laravel.com/laravel-cookie-security-releases
     *
     * @var string[]
     */
    protected $allowMissingPrefix = [
        'put name of remember me cookie here', 
    ];

    protected function decrypt(Request $request)
    {
        foreach ($request->cookies as $key => $cookie) {
            if ($this->isDisabled($key)) {
                continue;
            }

            try {
                $value = $this->decryptCookie($key, $cookie);

                $hasValidPrefix = strpos($value, CookieValuePrefix::create($key, $this->encrypter->getKey())) === 0;
                if ($hasValidPrefix) {
                    $value = CookieValuePrefix::remove($value);
                } elseif (! in_array($key, $this->allowMissingPrefix, true)) {
                    $value = null;
                }
                $request->cookies->set($key, $value);

            } catch (DecryptException $e) {
                $request->cookies->set($key, null);
            }
        }

        return $request;
    }