This method of saving changes is clunky because it requires manual intervention for each save. It has the advantage of working on almost all desktop browsers, and many mobile browsers.
If the button doesn't work save this link: https://tiddlywiki.com/empty.htmlYour browser may ask you to accept the download before it begins
Tip: most browsers have an option to prompt each time for the download location. This allows you to select the existing version of the file and replace it.