Good to see that the spoiler syntax does work the same there. But the code block part of my comment seems to be broken for you:
The spoiler syntax should not render as a spoiler when placed inside a code block
The language hint text is not supposed to be visible at all. It is just supposed to indicate to the client what flavor of syntax highlighting should be used for that code block.
Is the spoiler syntax the exact same across all ActivityPub platforms? I know the syntax used by Lemmy is not part of any Markdown standard:
Star Trek: Revenge of the Sith
Spock kills Dumbledore
Spoiler
What I see on PieFed:
Also those spoilers are spicy.
Good to see that the spoiler syntax does work the same there. But the code block part of my comment seems to be broken for you:
textis not supposed to be visible at all. It is just supposed to indicate to the client what flavor of syntax highlighting should be used for that code block.