set margin-header to null or false?

[davidleitch1]

Description

Documentation shows how to add a subscription widget via margin-header in the root of the website. This results in it showing up on every page. I would like it to show up once, just on a "posts" listing page. I have tried setting the individual posts to

margin-header: false

or

margin-header: ""

or created a blank html "nothing.html" and set on a post page eg "china.md"

margin-header: nothing.html

but they all either give compile errors (false and "") or have no effect.
I so like the cleanliness of quarto and the ease of building a website to my taste.

[mcanouil]

The option is a website level option.
I don't believe this to be available at a page level.

[davidleitch1]

Thank you. I guess the perfect is indeed the enemy of the good.

[mcanouil]

Note that you could tweak the code using JavaScript to display under certain conditions. (Out of scope of Quarto)