script.js

function signIn() {
    // Sign in to Google
    let oauth2Endpoint = 'https://accounts.google.com/o/oauth2/v2/auth';
    let form = document.createElement('form');
    form.setAttribute('method', 'GET'); 
    form.setAttribute('action', oauth2Endpoint);

    let params={
        'client_id': '941348030676-7vgban26e5ve72u8oep724oru483g052.apps.googleusercontent.com',
        'redirect_uri': 'https://athletix.netlify.app/home.html',
        'response_type': 'token',
        "scope": "https://www.googleapis.com/auth/userinfo.profile",
        "include_granted_scopes": "true",
        "state": "pass-through value"
    }

    for(var p in params){
        let input = document.createElement('input');
        input.setAttribute('type', 'hidden');
        input.setAttribute('name', p);
        input.setAttribute('value', params[p]);
        form.appendChild(input);
    }
    document.body.appendChild(form)
    form.submit()
}