Also as a defense mitigation I don't think escaping is ever going to be effective, it would be better to create anchor elements directly. With your current approach I can still XSS with, for instance:
Thanks! For now, I added a warning under the gist. Not that this is an excuse, but I put this together in about 30 minutes using GPT-4 for fun without much consideration about robustness or security. I will maybe try to rewrite it when I find time.
Please do! Besides being a fun exercise it’s also a neat idea. Comments from the HN community make the content posted almost always more interesting imho
For people reading this, the parent comment is referring to this line[1] from a previous revision of the gist.
[1]: https://gist.github.com/postmalloc/e2602752d46c5b9dee2446235...