Problem

The file size of the HTML export of a task is much bigger, than it needs to be, because in the HTML source code there is a lot of whitespace in it, that has no influence on the actual appearance or layout of the HTML. It only prettyfies the source code.

Solution

All whitespace in the source code of the HTML that is outside of the actual segments of the task and that is not needed for syntax reasons should be deleted. Yet only the whitespace, where this can be achieved with very little effort (achieve 80% of the benefit with 20% of the time).