ZIP file corrupted . Using Axios POST method .

Hey guys , I think that i am doing something wrong , but when i click on my button i get an zip file , but it says that is corrupted when i try to open it . What am i doing wrong ?

`getZip = () => {

    let postZipData = {
        customerNumber: this.state.customerNumber,
        docList: this.state.docList,

    }

    const token = localStorage.getItem('token');
    const axiosConfig = {

        responseType: 'arraybuffer',
        header: {
            'Content-Type': 'multipart/form-data',
            'Access-Control-Allow-Origin': '*',
            'Authorization': 'Bearer ' + token
        }
    };

    axios.post(SERVER_URL + '/api/user/bills/zip', postZipData, axiosConfig)

        .then((response) => {
            const url = new Blob([response.data],{
                type:'application/zip'
            });
            const link = document.createElement('a');
            link.href = url;
            link.setAttribute('download', 'file.zip');
            document.body.appendChild(link);
            link.click();
        })
    console.log('get the zip')
}`