Post History

I found that the problem is with the event-listener code in line 73 of https://math.codidact.com/assets/application-ba1f9d37b09ac57d363a53b8936f4b70438bff1fbe2ae8408013ec99fc833225.js . The event-listener sets the "i" object, whose "data-thread" attribute yields the comment thread number, as the target of the "click" event. This works when one clicks on normal text (because the immediately enclosing element is then an a.js--comment-link element) but does not work when one clicks on math (because the immediately enclosing element is then an mjx-container or similar element). Hence the [previous bug-report](https://meta.codidact.com/posts/295715) appears incorrect when it says that refreshing the page fixed the problem: in fact, the issue is still present if you click on the MathJax $+1$, but when you click elsewhere the comment expands correctly (so, probably, the user clicked on the $+1$ the first time around and then clicked elsewhere the next time). You can confirm that this is the root of the problem by using the inspector to edit (say, italicize) a part of the text in a comment title and then clicking on the italicized part; it will give a 404 error.) 

(Hence, to fix the problem, change the code
```
async e => {
  if (e.ctrlKey || e.metaKey) return;
  e.preventDefault();
  const i = $(e.target),
    a = i.data("thread");
  t(n(i), a)
}
```

 to something like 

```
async e => {
  if (e.ctrlKey || e.metaKey) return;
  e.preventDefault();
  const i = $(e.target);
  while (!i.classNames.contains("js--comment-link")) i=i.parentElement;
    a = i.data("thread");
  t(n(i), a)
}
```

I don't know what code this corresponds to in the non-minified JS, though.)