restart endnote numbering after each GitBook-style web chapter in R Bookdown - r-markdown

Question

I am preparing an historical book manuscript, written in R-Markdown with Bookdown, which will have 8 chapters, each with 100+ Chicago-style endnotes, using the GitBook-style web format.
My goal is to restart endnote numbering after each chapter, to avoid running into high digits and to resemble the appearance of traditional history books.
I have experimented with most of the settings described here (https://bookdown.org/yihui/bookdown/html.html#gitbook-style), but cannot produce the desired web output. Here's the relevant portion of my index.Rmd:
output:
bookdown::gitbook:
dev: svglite
css: css/style.css
split_by: rmd
split_bib: true
See my simplified mockup demo:
https://jackdougherty.github.io/bookdown-test/book/
and source code:
https://github.com/JackDougherty/bookdown-test

Answer 1

Note that in bookdown v 0.9, the <a> tag's class inside the citation changed from .footnote-ref to .footnoteRef.
So you need to extend some of your CSS to account for that when using an updated version of bookdown:
/* don't show the wrong footnote calls */
.footnote-ref sup,
.footnoteRef sup {
display: none;
}
...
.footnote-ref,
.footnoteRef {
counter-increment: fn-call;
}
.footnote-ref::after,
.footnoteRef::after {
content: counter(fn-call);
position: relative;
top: -.5em;
font-size: 85%;
line-height: 0;
vertical-align: baseline;
}
...
See https://github.com/rstudio/bookdown/issues/589#issuecomment-462149512 for more details.