Can't fetch from js after deployment to IIS - 404 not found

Question

i try to make http post request to my controller from the js. In localhost everything works perfectly, but when I deploy app on IIS, then fetch cut some part of path and return 404 not found.
Application is deploy on: https://example.com/ApplicationName/
Fetch url is: https://example.com/Home/Update/?switcher=false
But should be: https://example.com/ApplicationName/Home/Update/?switcher=false

Fetch:

    let url = '/Home/Update/?switcher=' + switcher;
    await fetch(url, {
        method: 'POST'
    })
        .then(function (response) {
            if (response) {
                toggleChatSwitch.disabled = false;
            }
        });

Controller:

        [HttpPost]
        public bool Update(bool switcher)
        {
[...]
        }