[Visuddhi]

Give the anchors names the
footnote itself ‘fn-1-1’
And the location of text ‘fnt-1-1’
i.e there is and extra 't' in the text location (but you can call them anything you want)


/In Chapter 1/
<p>blaaaaaaa blalalaaa&nbsp;<a href="#fn-1-1" id="fnt-1-1">[1]</a>&nbsp;blaaaaa blaaaaaa</p>
<p>blaaa blaa&nbsp;<a href="#fn-1-2" id="fnt-1-2">[2]</a>&nbsp;blaaaaa blaaaaaa<br /></p>

<p><a href="#fnt-1-1" id="fn-1-1">1</a>&nbsp;here is first footnote chapter 1</p>
<p><a href="#fnt-1-2" id="fn-1-2">2</a>&nbsp;second footnote<br /></p>


Looks like
blaaaaaaa blalalaaa [1] blaaaaa blaaaaaa
blaaa blaa [2] blaaaaa blaaaaaa

1 here is first footnote chapter 1
2 second footnote





To link to another chapter then you need to put in the page address before something like ‘Section0001.xhtml’ followed by link

/In Chapter 2/


<p>bblalalaaa&nbsp;<a href="#fn-2-1" id="fnt-2-1">[1]</a>&nbsp;blaaaaa blaaaaaa</p>
<p><a href="#fnt-2-1" id="fn-2-1">1</a>&nbsp;blaaa blaaaal ballll (also please see <a href="../Text/Section0001.xhtml#fn-1-1">Chapter Note 1</a>)</p>

1 blaaa blaaaal ballll (also please see Chapter Note 1)



I've added footnote.epub
Open it in Sigil to see example