@User instead of trying the above, please try the following: - Update your supertokens-auth-react dependency to

supertokens/supertokens-auth-react#0.13

- Delete yarn.lock file, and run

yarn install

. This should install new versions of

supertokens-auth-react

(0.13.0) and

supertokens-website

(7.1.0). - In the frontend config, change

SessionReact.init()

to

SessionReact.init({ isInIframe: true })

. - In backend config, change

SessionNode.init({ cookieSameSite: "none" })

to

SessionNode.init({ cookieSameSite: "none", antiCsrf: "VIA_TOKEN" })

- Try logging in via the iframe, and it should work.