Re: [webcomponents]: de-duping in HTMLImports from Dimitri Glazkov on 2013-04-09 (public-webapps@w3.org from April to June 2013)

From: Dimitri Glazkov <dglazkov@google.com>
Date: Tue, 9 Apr 2013 11:08:40 -0700
To: Scott Miles <sjmiles@google.com>
Cc: public-webapps <public-webapps@w3.org>, Steve Orvell <sorvell@google.com>
Message-ID: <CADh5Ky3zYFueYmSVhy2yVVpQr=LQGi5taMCXCOaoW2dvzFR9mg@mail.gmail.com>

The trick here is to figure out whether de-duping is observable by the
author (other than as a performance gain). If it's not, it's a
performance optimization by a user agent. If it is, it's a spec
feature.

:DG<

On Tue, Apr 9, 2013 at 10:53 AM, Scott Miles <sjmiles@google.com> wrote:
> When writing polyfills for HTMLImports/CustomElements, we included a
> de-duping mechanism, so that the same document/script/stylesheet is not (1)
> fetched twice from the network and (2) not parsed twice.
>
> But these features are not in specification, and are not trivial as design
> decisions.
>
> WDYT?
>
> Scott
>

Received on Tuesday, 9 April 2013 19:17:44 UTC