Strip double quotes from csrf token

[otatar]

Hi there,

just spent couple of hours on trying to resolve some weird behaviour when using react-hook-form with csrf feature of remix-utils. It seems that useForm from react-hook-form is returning data enclosed with double quotes ("). So when using csrf.validate(request) it fails on this line:

// if the body csrf token doesn't match the session csrf token, throw an
        // error
        if (formData.get(this.formDataKey) !== cookie) {
            throw new CSRFError("mismatched_token", "Can't verify CSRF token authenticity.");
        }

because the cookie string is without double qoutes and formData.get(this.formDataKey) is with double quotes...example:

cookie: py-rSfMaJ2K1iOOuZxwi8YyCTcNpe2LlzgWRGNUuHV8
formData.get(this.formDataKey): "py-rSfMaJ2K1iOOuZxwi8YyCTcNpe2LlzgWRGNUuHV8"

So it might be good to strip leading and trailing double quotes if they are present is csrf token string....