When displaying an image which is oriented north down, the compass rose is displayed on the lower right-hand corner and the grid labels are flipped upside down. Might need to take a look and fixed this to keep the orientation of the overlay regardless the image projection orientation.

See attached FITS file, upload and display the image, then rotate 'north-up' and add grid.

7/6/2018 XW

I duplicated this. We should fix it.