MSAL Node / Electron - PublicClientApplication.acquireTokenByCode() accessing Tokens despite clearing accounts - node.js

Question

I'm trying to clear all access Tokens from Main.Ts in an Electron App without success.
On the Node side of the App, I have a login function that implements the Auth Code Flow with PKCE - which works fine:
let login = async () => {
try {
const authResult = await getTokenInteractive(authCodeUrlParams);
mainWindow.webContents.send(IpcMessages.XXX-XXXX, authResult);
} catch (error) {
console.log(error);
}
};
let getTokenInteractive = async (
tokenRequest: AuthorizationUrlRequest
): Promise\<AuthenticationResult\> =\> {
try {
...
// Generate PKCE Challenge and Verifier before request
const cryptoProvider = new CryptoProvider();
const { challenge, verifier } = await cryptoProvider.generatePkceCodes();
...
// Get Auth Code URL
const authCodeUrl = await clientApplication.getAuthCodeUrl(
localAuthCodeUrlParams
);
const authCode = await listenForAuthCode(authCodeUrl, authWindow);
...
// This works fine
const authResult: AuthenticationResult =
await clientApplication.acquireTokenByCode({
...authCodeRequest,
code: authCode,
codeVerifier: verifier,
});
return authResult;
} catch (error) {
throw error;
}
};
The logout function also clears the accounts:
const logout = async () =\> {
try {
console.log("LOGOUT RECEIVED");
const accounts: AccountInfo\[\] = await clientApplication
.getTokenCache()
.getAllAccounts();
if (accounts && accounts.length \> 0) console.log(accounts);
await clientApplication.getTokenCache().removeAccount(accounts\[0\]);
// Test to see if accounts are cleared returns '[]'
const checkAccounts: AccountInfo[] = await clientApplication
.getTokenCache()
.getAllAccounts();
console.log(checkAccounts);
mainWindow.webContents.send(IpcMessages.USER_LOGGED_OUT);
} catch (err) {
console.log("Error in main.logout ", err);
}
};
Unfortunately, acquireTokenByCode still accesses the Token (?? How) when the user is redirected to a login page.
ps I've also checked local storage, Cookies etc in the browser and they are never populated (ie always remain empty).
I've seen numerous answers suggesting using a logout URL:
https://learn.microsoft.com/en-us/answers/questions/263335/msal-sign-out-does-not-appear-to-clear-cache.html
https://learn.microsoft.com/en-us/answers/questions/994601/logout-does-not-clear-session.html
However, these solutions down't work with Azure B2C. Also, redirecting using the logout endpoint using Electron.shell(openExternal([url])) also does nothing.
It's unbelievable that MS hasn't implemented a simple logout solution.
Question: Does anyone know how to stop tokens from being acquired WITHOUT having to open a native browser window or populate the Browser Window with a "Successfully signed out. You can now close this window" prompt ?
Thanks in advance.