Now retrieving binary data through XHR is possible, I started working on a proof of concept: a remote Exif data loader.

The idea is simple: if you have your original digicam photos online, just bulk downloaded from the camera, you only have very non-descriptive names for reference. Was that one interesting image called IMG_1234.jpg, or was that the blurry one and are you looking for IMG_2345.jpg? Your only option seems to download the whole blob, easily several MBytes per image for contemporary multi Mega Pixel camera.

Now there is hope for a smarter solution.
Most digicam images have embedded meta data in the Exif format, often including a nice little thumbnail.

Wouldn’t it be nice to retrieve this embedded data over the network to preview a photo by thumbnail?

I haven been working on this problem and have a proof of concept ready, coded as Greasemonkey user script for Firefox (1.5 and 2.0).

From a very high level the working principle is:

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