TYPO3 Core

I like to use getText config.additionalHeaders.10.header to be able to generate dynamic preload headers.

config.additionalHeaders {
  10 {
    header = link: <{versionedResourceUri : EXT:site/Resources/Public/Fonts/icons.woff2}>; rel=preload; as=font; crossorigin
    header.insertData = 1
  }
}