onload return 404 at preview

[mohammadrezahayati]

Hi, I try to return response in onload method at the first upload file and return response successfully but preview gave me 404 but response and return and setFiles initialized please help me
server={{
url: ${process.env.REACT_APP_URL},
timeout: 1000,
process: {
url: /api/image/upload,
method: 'POST',
onload: (response) => {
setFiles([...files, response]);
},
},
revert: /api/image/destroy,
headers: {
'Authorization': Bearer ${cookie.get('token')},
},

                        }}

[rikschennink]

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