W3C home > Mailing lists > Public > public-schemaorg@w3.org > August 2022

Re: Permit external JSON-LD files?

From: Jarno van Driel <jarnovandriel@gmail.com>
Date: Wed, 31 Aug 2022 14:35:43 +0200
Message-ID: <CADK2AU271ThmQ_=Rk1cd=yeZyym_NZN9v-85MJbC4hVk_eUYDg@mail.gmail.com>
To: Gregory Saumier-Finch <gregory@culturecreates.com>
Cc: "schema.org Mailing List" <public-schemaorg@w3.org>, Dave Vieglais <dave.vieglais@gmail.com>
As far as known there currently are no search engines (or any other large
consumers) which support the use of the link rel="alternate" http-header
nor do they support any form of structured data that isn't included on a
web page itself.

As for the <link rel="alternate"> html element, I've asked Gregg kellogg
about this in the past and he indicated this isn't supported by design as
it would force parsers to be able to parse html.

Op wo 31 aug. 2022 om 14:13 schreef Gregory Saumier-Finch <
gregory@culturecreates.com>:

> Hello group,
>
> I am very curious to know if Google Bot processes the remote document.
> Can anyone report back on the behaviour of Google Bots regarding the
> retrieval of JSON-LD alternate links in HTML page headers?
>
> I am willing to do some tests and report back if others are interested in
> this question as well.
>
> regards,
> Gregory
>
> *Gregory Saumier-Finch* | CTO | *La culture crée - Culture Creates *| c.
> (514) 316-6973 | culturecreates.com
>
> Nous reconnaissons que notre travail, ainsi que celui de nos partenaires,
> a lieu sur les territoires autochtones dans tout le Canada.
> We recognize that our work, and the work of our partners, takes place
> on Indigenous territories across Canada.
>
> On Aug 29, 2022, at 12:41 PM, Dave Vieglais <dave.vieglais@gmail.com>
> wrote:
>
> I believe another approach is to use a link header in the HTTP response of
> the requested resource. This is laid out in the current JSON-LD spec §
> 9.4 Remote Document and Context Retrieval
> <https://www.w3.org/TR/json-ld11-api/#remote-document-and-context-retrieval>.
> Basically if the response to a request https://example.org/foo.html
> includes a Link header such as:
>
> Link: <https://example.org/meta/foo.jsonld> ;rel=“alternate”;type=“application/ld+json”
>
> then the JSON-LD processor should recognize the alternate location for the
> requested document type and retrieve the JSON-LD document from
> https://example.org/meta/foo.jsonld.
>
> One benefit of such an approach is that a client interested in JSON-LD can
> issue a HEAD request to determine the location of the JSON-LD before
> retrieving the resource, saving a bit of traffic.
>
> I can’t speak for how broadly this approach is supported however.
>
> regards,
> Dave Vieglais
>
> On 29 Aug 2022, at 11:29, Hans Polak wrote:
>
> Good afternoon,
>
> This is from StackOverflow.
> https://stackoverflow.com/questions/30864619/does-json-ld-have-to-be-embedded
>
> <link href="/myid123/jsonld.js" rel="alternate" type="application/ld+json"
> />
>
> Yours sincerely,
> Hans Polak
>
> On 27/8/22 19:17, Roger Rogerson wrote:
>
> I appreciate that things like MicroData are inlined,
> and utilise the HTML Markup to associate data with content.
>
> But JSON-LD Schema is embedded.
> In many cases, this additional code serves no "human" purpose,
> and is provided for "machines" (typically Google).
>
> A shining example is the following web page (remove spaces after periods):
> https://www. delish. com/cooking/g1956/best-cookies/
>
> That page has approximately 35Kb of Schema.
> That is loaded for every single human visitor.
>
> In the case of popular pages - this means a large amount of unnecessary
> code is transferred (Gigabytes or higher per year).
>
> If the JSON-LD could be externalised into a referred to file,
> then this could reduce bandwidth consumption for users,
> help speed up some page load times/improve performance
> and help towards "going green".
>
>
> I appreciate that technically,
> this isn't about "Schema" directly,
> but about how Browsers and Parsers can recognise and handle
> and externalised version - but I'm hoping this is the right place
> to get it considered and the right people to see it/push it to browser
> vendors.
>
>
> Thank you.
> Autocrat.
>
>
>
Received on Wednesday, 31 August 2022 12:36:06 UTC

This archive was generated by hypermail 2.4.0 : Wednesday, 31 August 2022 12:36:07 UTC