PdfViewer external pdf -> CORS?

I am using https://vaadin.com/directory/component/pdf-viewer
and tried to set the src to an external pdf, ending in Access to fetch at 'https://link.pdf' from origin 'http://localhost:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.
Is this a vaadin limitation or can this be enabled/added to the component?