From Base64 String: Javascript Download //free\\ Image

Ensure your site's security headers allow data: or blob: schemes within the media-src and default-src directives, otherwise the browser will block the asset generation. If you(React, Vue, Vanilla JS)

The download attribute dictates the default filename presented to the user. javascript download image from base64 string

Where does the ? (Canvas API, backend API) What file size or resolution are you expecting? Ensure your site's security headers allow data: or