Cannot select root

[ChristopherChudzicki]

Steps to reproduce

1. Open examples/test/curve.html
2. In dev console, mathbox.select('root')

Expected

root node is returned

Actual

Empty selection is returned

This is a regression that was introduced in https://gitgud.io/unconed/mathbox/-/merge_requests/25

[sritchie]

Ah! Very interesting. That feels related to the component reload bug… nice find here!

[ChristopherChudzicki]

I've decided this is actually not a bug. The old behavior in which mathBox.select('root') returned the root node was a bug.

I'm not going to try and dig up the exact CSS spec for this, but elements seem not to be selectable from themselves. For example:

html = document.querySelector('html') // returns HTML element
html.querySelector('html') // returns null

[sritchie]

Sounds correct to me.

[sritchie]

#57 adds a way around this, since we could now call root(...) from any level.