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I took a screenshot so interested people can see how badly images can be mangled by the proxies used by some mobile companies.

(http://i.imgur.com/DYbVSbj.png)




Wow what mobile companies do that?


AT&T, Verizon, Sprint, T-Mobile... depending on network, image size, device and browser user-agent.


I just tried it on Verizon from Chrome on my ThinkPad (via mobile hotspot) and my Galaxy Note II. Both displayed a perfect image, albeit very slowly.

Not saying there aren't cases where it does happen; obviously from that screenshot there are; I just didn't run into it.


I'm on T-Mobile in the UK. This is a T-Mobile mobile broadband dongle.

They do give you the option to get the original image. They do this sub-optimally by injecting javascript into every page I visit. They hijack the alt-text, replacing it with a message that says something like "Shift R improves the quality of this image, Shift A improves the quality of all images on this page".

The IP address they use for the caching / mangling proxy is 1.2.3.X (where X tends to be 9 or 11) - I'm not making that up, they actually use 1.2.3.9 which is a bad idea.




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