HTTP 422 Unprocessable Content Error about overleaf-image-helper HOT 2 CLOSED

try{
    var xhr = new XMLHttpRequest();
    var url = document.location.pathname + "/upload?folder_id=" + _ide.fileTreeManager.findEntityByPath("assets").id; //+ "&_csrf=" + csrfToken;
    let formData = new FormData();
    formData.append("targetFolderId", _ide.fileTreeManager.findEntityByPath("assets").id);
    formData.append("name", hash + ".png");
    formData.append("type", "image/png");
    formData.append("qqfile", imageBlob, hash + ".png");
    xhr.open("POST", url, true);
    xhr.setRequestHeader('x-csrf-token', csrfToken);
    //xhr.setRequestHeader("Content-Type", "application/json");
    xhr.onreadystatechange = function () {
        if (xhr.readyState === 4 && xhr.status === 200) {
            var json = JSON.parse(xhr.responseText);
            console.log(json.entity_id + " Asset created :)");
        }
    };
    xhr.send(formData);
}catch(e)
{
    console.log(e)
}