tinymce обрезает url адрес в после загрузки изрображения

<script>
const example_image_upload_handler = (blobInfo, progress) => new Promise((resolve, reject) => {
    const xhr = new XMLHttpRequest();
    xhr.withCredentials = false;
    xhr.open('POST', 'postAcceptor.php');

    xhr.upload.onprogress = (e) => {
        progress(e.loaded / e.total * 100);
    };

    xhr.onload = () => {


        if (xhr.status < 200 || xhr.status >= 300) {
            reject('HTTP Error: ' + xhr.status);
            return;
        }

        const json = JSON.parse(xhr.responseText);

        if (!json || typeof json.location != 'string') {
            reject('Invalid JSON: ' + xhr.responseText);
            return;
        }

        resolve(json.location);


    };

    xhr.onerror = () => {
        reject('Image upload failed due to a XHR Transport error. Code: ' + xhr.status);
    };

    const formData = new FormData();
    formData.append('file', blobInfo.blob(), blobInfo.filename());


    xhr.send(formData);

});





tinymce.init({
    selector: '#text',
    plugins: ['media', 'autoresize', 'charmap', 'code', 'emoticons', 'insertdatetime', 'link', 'lists', 'media', 'quickbars', 'table', 'save'],
    toolbar: ['link numlist bullist media quickimage  table alignleft aligncenter alignright alignjustify backcolor bold italic underline fontsize forecolor backcolor charmap code emoticons insertdatetime', ' undo redo subscript superscript save'],
    quickbars_selection_toolbar: 'bold italic | blocks | quicklink blockquote  h2 h3 ',
    media_url_resolver: function(data, resolve /*, reject*/ ) {
        if (data.url.indexOf('YOUR_SPECIAL_VIDEO_URL') !== -1) {
            const embedHtml = `<iframe src="${data.url}" width="400" height="400" ></iframe>`;
            resolve({
                html: embedHtml
            });
        }


    },

    language: 'ru',
    //images_upload_url: 'postAcceptor.php',
    convert_urls: false,
    images_upload_handler: example_image_upload_handler,


});

сейчас в src вставляется -http://agusait/panel/images/mceu_8489898321670791044128.jpg
если убрать convert_urls: false то будет выводить images/mceu_8489898321670791044128.jpg
хотелось бы чтобы выводило так- /panel/images/mceu_8489898321670791044128.jpg