Small quirk/bug report: maximized images can only be closed by clicking outside of them (no "X" or other control for that function that I could see), but the co

Small quirk/bug report: maximized images can only be closed by clicking outside of them (no "X" or other control for that function that I could see), but the code doesn't take into account a browser window that is smaller than the image; in that eventuality the image can't be closed and the user is forced to close the tab because also the back button doesn't work.