1616789 - Image rotation attribute not honored

Status: RESOLVED INVALID

(Core :: Layout: Images, Video, and HTML Frames, defect)

Description

[Jens Stutte [:jstutte]]

Attachment: ImageFlippedError.PNG

The right image on https://www.chianterastutte.eu/site/ (me) should be displayed upright.

On FF 73 this works correctly, on Nightly 75 not.

Comment 1

[Emilio Cobos Álvarez (:emilio)]

If I add image-orientation: none to the element then it restores the previous behavior. Chrome Canary and Safari also show the rotated image.

This is a regression from bug 1607667.

Comment 2

[Cameron McCormack (:heycam)]

The EXIF metadata in that image appears to be "wrong":

$ wget -qO- https://www.chianterastutte.eu/site/jenssmall.jpg | exiftags | grep Orientation
Image Orientation: Right-Hand, Top

Checking with http://sylvana.net/jpegcrop/exif_orientation.html, Right/Top means that the image must be rotated clockwise 90 degrees to be shown at its correct orientation.

Maybe a tool has rotated the contents of the image without adjusting the EXIF orientation tag. I suggest the image itself be fixed by correcting the EXIF orientation data to be set to Left/Top, which is correct for the image data, and which doesn't require re-orientation for display:

$ exiftran -o jenssmall-corrected.jpg -nt -ni -2 jenssmall.jpg

We are hoping that there will not be much breakage from the image-orientation initial value change in bug 1607667. I'll resolve this bug as INVALID For now.