I'm working on a mobile website and on some devices (in my particular test, an iPhone 4) when visiting the site over 3G the images are compressed and look unacceptably fuzzy. When visiting the site over wifi (and clearing cache AND quitting Safari) the images appear as expected.
We've reduced the image size as much as possible without losing quality (between 2 and 26KB) and added the 'no-cache' fix recommended on another post:
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="pragma" content="no-cache">
Still no luck!
Is there anything else we can do to force the image quality over 3G?
Thanks, Kev
It's the mobile carrier's proxy that modifies images.