On Tue, Sep 22, 2009 at 9:32 AM, Eduardo Casais <casays@yahoo.com> wrote: > A quick scan (mainly for the issues discussed recently). > > 3.5.10 Consider Use of Canvas Tag or SVG For Dynamic Graphics > > I presume there will be still a short review of what you > included or left out in the draft from previous comments, > but one things struck me: > ----- > In most cases Canvas is faster and should be preferred if > it meets requirements. > ----- > Do you have any new information about the performance > advantage of Canvas? Jeff stated explicitly he was not > able to determine how SVG and Canvas compared in this > respect. > > I knew that would be contentious. This was based on an (admittedly informal) straw-poll on an internal mailing list of people who I know are using Canvas/SVG in their applications (e.g. various web maps teams). It's developer opinion not empirical measurement. I think it's probably valid, and rings true (a bitmap verse a vector DOM) but we can ding if consensus is against it. > > 3.6.1 Prefer Server-Side Detection Where Possible > > In the subsection "3.6.1.2 How to do it", you can shorten > the text from: > ----- > In its most basic form, the minimum evidence from the client device is the > HTTP Accept header field. > > In practice, this evidence is insufficient to determine the key properties > that will help to select/adapt the content appropriately, so additional > header fields or other sources of information should be considered. > Typically, the following header fields provide evidence of device > capabilities: > ----- > to: > ---- > In its most basic form, the minimum evidence from the client device is the > HTTP request header. > > Typically, the following header fields provide evidence of device > capabilities: > ----- > Since anyway the entire HTTP header is available to the > server, and the discussion examines the Accept field as > well the other important fields. > > Will update. > > E.Casais > > > > >Received on Tuesday, 22 September 2009 08:57:53 UTC
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