I am trying to pass url variable to axios call:

let timer;
 document.getElementById('dropdown').addEventListener('keyup', () => {
    clearTimeout(timer);
    timer = setTimeout(() => {
        const url = "/register-item/categories";
             filter.filterSubmit(selectTypeId, url);
        }, 500);
    });

 filterSubmit(selectTypeId, url) {
   http({
       method: 'post',
       url: url,
       data: {
           item_type_id: selectTypeId,
       }
     })
}

but I get this error Uncaught (in promise) TypeError: Cannot read properties of isURLSameOrigin.js undefined (reading 'protocol').
And when I do it like this:

http({
      method: 'post',
      url: '/register-item/categories'
    })

Everything works fine.