Bra-Ket notation not rendering

[spino17]

When trying to use Bra-Ket notation using the code given on https://katex.org/docs/supported.html#special-notation, it is not rendering.

[elindgren]

This is due to react-latex being stuck on an outdated version of Katex (version 0.10.2) which does not include the Bra-Ket commands. I'd recommend implementing the functionality of react-latex yourself, so that you can have control of the version of Katex you're using.