In the meantime, here is a "duck season! wabbit season!" fight going on about spaces in self-closing tags. 2022 puts them in: <br /> and 2020 takes them out: <br/> Is it definitely due to running different vers
Edge 17 (EdgeHTML) already had support when the test was written. It inherited that support when adopting Chromium in 2019. With Opera switching to Chromium in 2013, I would assume that it received patches from upstream Chromium (September 2018) when that bug was fixed. (It is not tested ...