New version of Discourse dropped support for QtWebEngine 5.15 LTS

There is a major annoyance with the new version of Discourse that was deployed here today: It now refuses to bring up the JavaScript interface on QtWebEngine 5.15 LTS, which includes the latest versions of Falkon and Angelfish (the latter being used as the default browser on Manjaro Plasma Mobile). A workaround is to add an ad blocking rule for ||forum.manjaro.org/assets/browser-detect-*.js. That allowed me to post this message with Falkon.

Going through the checks in the browser-detect.js script, the only thing that it is missing is CSS.supports("aspect-ratio: 1"), which is a pretty weak justification for refusing to bring up the JavaScript interface altogether, especially considering that it looks just fine.