Minimap not working when content is larger than one screen?

[lucasmoeskops]

Describe the bug
I just tried to use the MiniMap feature, of which I really like that it's supported. Basically it works directly, which is really nice. There seems to be a bug with it however for my specific case. My content takes up about 5 screens horizontally and 2 screens vertically. However, the MiniMap seems to assume the content width is at most until the end of the screen. The red-bordered area is correct on the top and on the left area, but on the bottom and the right it always stretches to the very end of the minimap, even though I'm only seeing a small part of the content.

Is it maybe not suited for content that is bigger than 1 screen?

To Reproduce
Steps to reproduce the behavior:

1. Create a transformwrapper and transformcomponent of a html component that is bigger than 1 screen width
2. Use the minimap
3. Notice that it stretches to the very end, even though not all content is visible.

Expected behavior
The Minimap visible bordered area should show the right area compared to the whole size of the html element, and not just to the end of the screen.