upload

the URL used for uploading and storing images inserted into the text

Example

webix.ui({
    view: "editor",
    value: "<p>Hello World!</p>",
    upload: "https://docs.webix.com/editor-backend/images" 
});

This property is optional. If omitted or set to a falsy value, images will be embedded as base64 data URLs directly in the editor content.