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La cadena se agrega a través de Jquery.append pero no con la función appendChild

Estoy convirtiendo un script jQuery en Javascript pero appendChild arroja un error donde jQuery no lo estaba. A continuación se muestran los fragmentos de código originales

jQuery

 if (data) { $('head').append(data); }

JavaScript

 if (data) { document .getElementsByTagName("head")[0] .appendChild(data); }

error

TypeError no detectado: no se pudo ejecutar 'appendChild' en 'Node': el parámetro 1 no es del tipo 'Node'.

mientras que los datos tienen el siguiente contenido (JSON+LD)

 const data = "\n<script type=\"application/ld+json\">\n{\n \"@context\": \"http://schema.org\",\n \"@type\": \"BlogPosting\",\n \"mainEntityOfPage\": {\n \"@type\": \"WebPage\",\n \"@id\": \"http://localhost:8080/?p=abbc\"\n },\n \"url\": \"http://localhost:8080/?p=abbc\",\n \"headline\": \"How To workout.\",\n \"datePublished\": \"2021-12-17T15:15:00-06:00\",\n \"dateModified\": \"2022-05-31T11:01:15-05:00\",\n \"author\": {\n \"@type\": \"Person\",\n \"name\": \"Laura\",\n \"url\": \"http://localhost:8080/?a=laura\"\n },\n \"wordCount\": \"377\",\n \"description\": \"Main description  . \"\n}\n</script>"
about 4 years ago · Juan Pablo Isaza
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