Question
Modal fade of the page for no reason
Dragged a mouse accidentally over this post down there. Pressed at least one or both of the left/right mouse buttons at the same time. The screenshot has not been modified...

The only interaction with the page, that still works:
- Scrolling. Also middle (wheel) click does only scrolling anywhere on a page and doesn't open links in a new tab, like it normally does.
- Ctrl+A (select all). The left click cancels the "select all", but cannot do anything else.
- Right click.
Happened on a Vivaldi browser, which is Chromium/Blink based.
