Relevant book to use as reference. Written by Simon who worked with web standards at Opera. The race to conform with whatever browser had the biggest market sha

Relevant book to use as reference. Written by Simon who worked with web standards at Opera. The race to conform with whatever browser had the biggest market share that day (typically IE, or Chrome) - meant a lot of reverse engineering. https://htmlparser.info/ https://htmlparser.info/ This chapter https://htmlparser.info/conformance-checkers/ https://htmlparser.info/conformance-checkers/ lists "Self closing tags" behind 2.46% of the errors at the time of writing. I believe there is some reference implementation somewhere too, but I couldn't find it.