[whatwg] RWD Heaven: if browsers reported device capabilities in a request header

Nils Dagsson Moskopp nils at dieweltistgarnichtso.net
Mon Feb 6 09:43:43 PST 2012

James Graham <jgraham at opera.com> schrieb am Mon, 06 Feb 2012 17:42:16

> […]

> A typical thing that people want to do is to deliver and display
> *less* content in small (measured in arcseconds) screen scenarios. If
> you are only going to show a subset of the full content it would be
> nice to only do a subset of the backend work (database queries +
> etc.) and transfer a subset of the full data. At the moment this is
> possible, but you pay for it with an extra RTT (at least as far as I
> can tell).

> I am sympathetic to the view that it would be desirable to
> be able to minimise the cost of generating a reduced-functionality
> page without burning the savings on extra round trips.

An argument into the opposite direction can be that making it easier to
create reduced-functionality pages fragments the web. Say, why should
mobile pages have different semantics, not just different layout and

Nils Dagsson Moskopp // erlehmann

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