The app feels snappier: messages appear immediately after pressing the send button. Particularly noticeable for large inline images. Multiple simultaneous uploads and downloads are now supported.
The app is babel-compiled and minified for production, packaged for NPM: https://www.npmjs.com/package/tinode-webapp
Other fixes and improvements in the server:
3dc31ec abb0107 fix for a crash in presence
25e01b2 more consistent logging in uploads/downloads
WebApp:
3975401 fix canonical url and application-url
45acee4 fix for a broken "send" button
fix for visual breakage (https://github.com/minimaxir/big-list-of-naughty-strings)