REST API call to /api/auth/signout not working

[yashvijaju]

hey, I am using Next Auth with Azure Active Directory, and thus need to use the /api/auth/signout api to clear session data (using SignOut() doesn't sign me out of Azure).

When I click signOut, the following onClick function is fired :
onClick={() => {signOutLocal().then(window.location.assign("https://login.microsoftonline.com/common/oauth2/v2.0/logout"))}}

The signOutLocal is as follows:

async function signOutLocal() {
        console.log("here")
        const csrfToken = await getCsrfToken()
        console.log(csrfToken)
        const res = await fetch('/api/auth/signout', {
            method: "POST",
            headers: {'Content-Type' : 'application/json'},
            "X-CSRF-TOKEN": csrfToken
        });
        console.log(res)
    }

The API is returning 200, so i'd assume it works. However, the session data is not being cleared. When I head to /api/auth/session, I can see all the session data. How can I fix this?

Update :
Changed signOutLocal to as follows. Currently works on LocalHost but not live website.

async function signOutLocal() {
        console.log("here")
        const csrfToken = await getCsrfToken()
        console.log(csrfToken)
        const res = await fetch('/api/auth/signout', {
            method: "POST",
            headers: {'Content-Type' : 'application/x-www-form-urlencoded'},
            body: new URLSearchParams({
                csrfToken: await getCsrfToken(),
              })
        });
        console.log(res)
    }

Currently works on LocalHost but not live website. Any thoughts on how I could fix this?