A major pain point in using fava is the following:

• I'm on the Balance Sheet page or a journal page for any account. The line chart is shown at the top by default.
• The page has many entries, so I want to scroll down.
• I move my mouse towards the top-right of the browser window to grab the scrollbar.
• On the way, the mouse passes over the chart.
• The chart displays a popup which replaces the previously small scrollbar with a big one which scrolls the whole page (not only the journal but the header and left sidebar, as well). See on the second screenshot below. An extra scrollbar is also displayed at the bottom. This one is not visible on the screenshot.
• The only way to make these two unwanted scrollbars disappear is to hover over the chart, find a data point which is not as close to the window's right side, and hover over it to display another popup. (see first screenshot below)

This happens to me multiple times a day. Very annoying. Somehow the chart component should be instructed to never show popups outside the boundaries of the browser window.

Popup in the middle of chart. No scrollbar. :

Popup at the right side of chart. Full-page scrollbars displayed on the right and the bottom (not visible). :