That’s the one! Data URL! Thanks. :) The primary way we used it was as the body of a tracking gif, returned as binary. But we also used it as a spacer here a

That’s the one! Data URL! Thanks. :) The primary way we used it was as the body of a tracking gif, returned as binary. But we also used it as a spacer here and there inline in HTML using the data URI. When embedding in HTML the file size is mostly relevant for brevity. Wow, that takes me way back.