Hi list, In one of my Oxygen projects, I need to generate an HTML file from DITA sources without using any external links. To achieve this, I embed a few icons directly into the output file using the following DITA code: <image href=" data:image/png;base64,iVBOR…” scope="external"/> The … represents the remaining 1585 characters of the base64-encoded image data. When I save the DITA file, Oxygen repeatedly displays the following error: Description  Reference " data:image/png;base64  ,iVBOR…".  Severity  Error  Engine name  DITA Validation  Additional info  <https://www.oxygenxml.com/dita/1.3/specs/langRef/attributes/thehrefattribute.html> https://  www.oxygenxml.com/dita/ 1.3/specs/langRef/ attributes/  thehrefattribute.html  Despite the error message, the HTML transformation works correctly, and the output file is generated as expected. How can I prevent Oxygen from displaying these error messages? Freundliche Grüße | Best regards Frank Dissinger Documentation Manager .......................................... CGS ORIS GmbH Email <mailto:frank.dissinger@cgs-oris.com> frank.dissinger@cgs-oris.com | Web <http://www.cgs-oris.com/> www.cgs-oris.com Address Kettelerstrasse 24 | 63512 Hainburg | Germany Phone +49 6182 9626-0 | Fax +49 6182 9626-99 Commercial register Offenbach, HRB no. 21495 Managing directors Bernd Rückert, Christoph Thommessen <https://www.cgs-oris.com/signatur> ​