Attached is an image taken at the correct angle -- horizontal to the desk. The image was then told through EXIF data to rotate to be horizontal with the text on the plastic device stand. The image bits are unchanged. Only EXIF data was updated, Apple's iPhone "Photos App" style.
HTML Inlined, the image is displayed according to the image bits. All EXIF data is ignored.
I feel that this is the correct way for browsers to deal with displaying photos. Use the image bits, not the image instructions found within the EXIF data. This is the globally acceptable way of presenting and image, since EXIF data is often manipulated/stripped when the image gets transported from one site to another, across several different systems.
DIRECT LINK - When displaying just the JPG image, FireFox and Chrome respect EXIF data. InternetExplorer does not. http://id242.com/woof/kanex.jpg (click the link and view the photo using one of the mentioned browsers)
INLINED - When inlining the JPG image within your HTML content, InternetExplorer, Firefox, and Chrome do not respect the EXIF data.