http - Generate thumbnail from remote jpeg without downloading -


i want load exif thumbnail preview stored in jpeg image located on remote server, without having download whole image. server not support resuming.

is possible? in detail, can assume thumbnail image data alway before full image data have download maximum of (e.g.) 100kb can parse thumbnail data?

i asking same question , found greasemonkey script adds thumbnail images apache auto index page.

for each jpeg image link issues range request jpeg / jfif header, parses thumbnail offset , thumbnail length tag issues further range request thumbnail, creates data uri , assigns new img object.

unfortunately works jpeg file formats.


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