[Commentor] LC-274 Ian Jacobs [Comment] I note that the previous concern also holds for many desktop environments, including very common one likes in companies or libraries where people often cannot install arbitrary software or configure their machines freely. Is this even more frequent on a mobile device? [Working Group decision] Yes, this is true. However, the contrast is that it is usually expected that personal devices to be configurable; while the mobile phone is very much a personal device, it's rarely configurable. [Commentor reply] 
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