@MutedJam Great, I see progress!
I now get my html sent to the Gotenberg-container and in my workflow there is a file returned named “html.html” … if I rename it (shell) it is a valid pdf … great.
I added another rename-node to the workflow (rename “html.html” to “my.pdf”) but the mime-type stays “text/html” somehow. Do I need some modified HTTP request?
EDIT: seems a node like this solves it (modernized as Code-Node).