Read uploaded CSV file using Fetch error. (Solved)

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I have used some code from within the forum that allows a user to upload a file to MediaManager.
https://www.wix.com/velo/forum/tips-tutorials-examples/upload-import-csv-file-to-content-manager-from-page-frontend

export function submit_click(event) {
  console.log('click')
    $w("#submit").disable();
    $w("#uploadButton1").startUpload()
        .then((res) => {
            console.log(res)
            let file = res.url;
            let data = {
                title: 'My file',
                file: file,
                mediaId: res.mediaId
            };
            wixData.insert('Uploadedcsv', data)
                .then((result) => {
                    $w("#submit").enable();
                });
        });
}

I then have some backend code that in theory uses the fetch method to get the file information as text. https://www.wix.com/velo/forum/coding-with-velo/access-user-uploaded-files-from-backend-1


export async function check() {
    console.log("Start Check");
    let user = wixUsersBackend.currentUser;
    let data = await wixData.query("Uploadedcsv").eq("_owner", user.id).limit(1).find();
        for (let i = 0; i < data["length"]; i++) {
        let wix_filename = data["items"][i].file;
        let url = await mediaManager.getFileUrl(wix_filename)
        console.log(url)
        let file = await fetch(url);
        console.log(file)
        let content = await file.text()
        console.log(content)
    }
}

Unfortunately, whilst i do get results in the console.log(file) of status 200, headers, body ect the console.log(content) is undefined. Can anyone help so i can read the content of the CSV file all be it as text?
Sorry all my mistake, missed an await on the file.text().

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