From b9bdaf5803f489f2766b688c4cef41da89b28464 Mon Sep 17 00:00:00 2001
From: Pjotr Savitski <pjotr.savitski@gmail.com>
Date: Wed, 15 Sep 2021 20:14:16 +0300
Subject: [PATCH] Fixed an issue with a code example

An example returned document.querySelector result passed as a callback to the typeset() function which threw an exception because MathJax.typesetPromise() requires an iterable not just a Node. Changed the example to return an array with that node instead.
---
 web/typeset.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/typeset.rst b/web/typeset.rst
index 584811f5..b6f840c4 100644
--- a/web/typeset.rst
+++ b/web/typeset.rst
@@ -94,7 +94,7 @@ DOM modifications and returns the array of elements to typeset, or
    typeset(() => {
      const math = document.querySelector('#math');
      math.innerHTML = '$$\\frac{a}{1-a^2}$$';
-     return math;
+     return [math];
    });
 
 would replace the contents of the element with ``id="math"`` with the