Need Help 🙏 unable to delete cookie in Express

Hello everyone 👋 I am a newbie working on a full stack web app using node, express and mongodb in the backend for my final semester project.

I am working on an admin portal, when users (admins) sign in a cookie is stored in the browser and a token (using json web tokens here) is stored in the mongodb, but I am unable to delete the cookie during logout.

My logout code is :-

app.get("/logout", auth, async (req, res) => {
  try {

    req.user.tokens = req.user.tokens.filter((currentElement) => {
    return currentElement.token !== req.token })

    res.clearCookie("jwt");
    console.log("Logout Successful");

    await req.user.save();
    res.render("/");

  } catch (error) {
    res.status(500).send(error);
  }
});

Authorization code :-

const auth = async (req, res, next) => {
    try  {
        const token = req.cookies.jwt;
        const verifyUser = jwt.verify(token, process.env.SECRET_KEY);
        console.log(verifyUser);

        const user = Register.findOne({ _id :verifyUser._id});
        console.log(user.firstname);

        req.token = token;
        req.user = user;

        next();     

    } catch (error) {
        res.status(401).send(error);
    }
}

Logout only gives this output :-

And it seems like
res.clearCookie("jwt")
is not working here 👇

as the jwt cookie is not getting deleted 😑 Please help I am stuck from weeks. Unable to figure out how to make it work.

Comments

[Jacob Enders]

Does this help any?

expressjs.com/en/api.html#res.clea...

Web browsers and other compliant clients will only clear the cookie if the given options is identical to those given to res.cookie(), excluding expires and maxAge.

[Shrikant Dhayje]

try changing this one line

res.clearCookie("jwt");

to two line

res.cookie("jwt");
res.clearCookie("jwt");

[tq-bit]

Out of curiousity-couldn't you delete that cookie in the frontend once you receive a 200 - logout response?

[CuriousDev]

I had a look and it seems, like you need to use the same options parameter which you have used for setting the cookie.