Render a list of typed links as HTML `<link>` elements
Source:R/utils_build_metadata.R
signposting_link_tags.RdThe register is served by GitHub Pages, which cannot set HTTP response headers, so signposting is expressed entirely through `<link>` elements in the page head. The FAIR Signposting profile explicitly allows this: Level 1 asks for the links "in the HTTP header and/or in HTML link elements", and names platforms without header control as the reason for the alternative. What is given up is HEAD-request access to the links, and any signposting on the PDF itself. Level 2 (a link set served as `application/linkset+json`) is out of reach on GitHub Pages, which derives media types from file extensions and has none registered for that type.