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Re: [css-device-adapt] Accepting semi-colons as a separator for meta-viewport

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Thu, 20 Oct 2011 14:36:34 -0700
Message-ID: <CAAWBYDBOU7HRh0BZVi=SHbPXSnQQ1W2Z7FaA5NcbBdy9GpTr_w@mail.gmail.com>
To: Peter Beverloo <beverloo@google.com>
Cc: www-style@w3.org, rune@opera.com
On Thu, Oct 20, 2011 at 10:12 AM, Peter Beverloo <beverloo@google.com> wrote:
> The CSS Device Adapt specification defines a parsing algorithm[1] for
> the meta-element viewport content, which has been based on WebKit's
> implementation that shipped with iOS4. This algorithm only accepts
> commas as separators between properties.
> In reality, web authors are using both commas as semi-colons. A wide
> range of websites, including CNN[2], Flickr[3] and Reddit[4] depend on
> this behavior, which has led at least Mozilla and Microsoft to
> implement it and, in case of the latter, write about it[5].
> I think the specification should adapt to reflect what authors are
> doing. While it's unfortunate that the divergence between commas and
> semi-colons happened, it's important for compatibility among mobile
> browsers.
> Thanks,
> Peter
> [1] http://dev.w3.org/csswg/css-device-adapt/#parsing-algorithm
> [2] http://m.cnn.com
> [3] http://m.flickr.com
> [4] http://www.reddit.com/.compact (or http://m.reddit.com/)
> [5] http://blogs.msdn.com/b/iemobile/archive/2010/11/22/the-ie-mobile-viewport-on-windows-phone-7.aspx

Agreed that we should match current behavior, whatever it is.
Hopefully by getting a single correct description of the necessary
parsing algorithm we can get proper interop between everyone that
prevents it from drifting further.

Received on Thursday, 20 October 2011 21:37:21 UTC

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