jpg not displaying in nokia browser

March 30, 2009

Ok so I’m doing a mobile website. When my application receives a GET request for an image, it uses wurfl to check the User-Agent header and figure out what phone the user has, then resizes the image accordingly (with caching, obviously).

It seemed to work fine on every phone in the office except my own – on mine (a basic nokia 2600) the image seemed to download, but just wouldn’t display (I was left with a correctly-sized blank instead). I could see the image was being generated and cached, and I could even save it on the phone, but when I tried to look at it it wouldn’t display.

Discovered it worked ok for gifs, and eventually I figured out the problem was jpeg image interlacing. The phone doesn’t seem to support it – turned it off and it works fine.

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