Yes. The list will be committed directly to the Chromium repository. The
list of candidate resources (before the manual vetting) is in a sheet here
<https://docs.google.com/spreadsheets/d/1hXYVqwHQJJVTJ3LnKwMZiGF-eFGHc1J8y8k3Xc7h8zc/edit?usp=sharing>
.

On Fri, Oct 17, 2025 at 4:15 PM Ben Kelly <[email protected]> wrote:

> Will the list of manually curated scripts be published somewhere?  I did
> not immediately see something like this skimming the doc or chrome status
> entry.
>
> Thanks.
>
> Ben
>
> *From: *Patrick Meenan <[email protected]>
> *Date: *Friday, October 17, 2025 at 3:12 PM
> *To: *blink-dev <[email protected]>
> *Subject: *[blink-dev] Intent to ship: Cache sharing for
> extremely-pervasive resources
>
> This Message Is From an External Sender
>
> *Contact emails*
> [email protected]
>
> *Specification*
> *N/A*
>
> *Design docs*
>
> https://docs.google.com/document/d/1xaoF9iSOojrlPrHZaKIJMK4iRZKA3AD6pQvbSy4ueUQ/edit?usp=sharing
> <https://urldefense.com/v3/__https://docs.google.com/document/d/1xaoF9iSOojrlPrHZaKIJMK4iRZKA3AD6pQvbSy4ueUQ/edit?usp=sharing__;!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJhFCuXRtQ$>
>
> *Summary*
> For a small number (hundreds) of hand-curated static third-party script,
> stylesheet and compression-dictionary resources that are used on a large
> portion of the web, Chrome will use a single-keyed HTTP cache to store
> those resources.
>
> This helps users and site owners with faster performance for those
> resources that are very widely used while maintaining the privacy
> protections of the partitioned disk cache. This feature targets the
> resources that most users are likely to see multiple times across multiple
> sites in any given browsing session. They are usually not in the critical
> path of the page loading and may not impact the common performance metrics
> but they are still important for the healthy operation of the web.
>
> The list of candidate resources is manually curated from the HTTP Archive
> dataset and updated on an ongoing basis. This includes site-independent
> things like common analytics scripts, social media embeds, video player
> embeds, captcha providers and ads libraries.
>
> It allows for code that uses versioned URLs as long as the versioning is
> not a manual process by embedders and that the same version is sent to
> everybody at a given point in time with the same contents. This does not
> include things like common Javascript libraries where they are commonly
> self-hosted or where the URL references a specific version of the library
> and it is up to site owners to manually select a version.
>
> i.e.
>
> Yes: https://maps.googleapis.com/maps-api-v3/api/js/62/5d/common.js
> <https://urldefense.com/v3/__https://maps.googleapis.com/maps-api-v3/api/js/62/5d/common.js__;!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJgSqmyqgQ$>
> No: https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js
> <https://urldefense.com/v3/__https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js__;!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJj4u2iLCA$>
>
> *Blink component*
> Blink>Network
> <https://urldefense.com/v3/__https://issues.chromium.org/issues?q=customfield1222907:*22Blink*3ENetwork*22__;JSUl!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJhr_KK6BQ$>
>
> *Web Feature ID*
> *No information provided*
>
> *Risks*
>
>
> *Interoperability and Compatibility*
> This change is internal to Chrome and should be completely transparent to
> the web platform with no interoperability risks.
>
> *Gecko*: N/A
>
> *WebKit*: N/A
>
> *Web developers*: No signals
>
> *Other signals*:
>
> *Ergonomics*
> N/A
>
> *Activation*
> N/A
>
> *Security*
> Cache partitioning added a level of privacy protection that is being
> disabled for a small number of resources where it is deemed safe to do so.
> The linked document and issue provide the details on the protections that
> are in place to minimize the privacy exposure.
>
> *WebView application risks*
>
> *Does this intent deprecate or change behavior of existing APIs, such that
> it has potentially high risk for Android WebView-based applications?*
> *No*
>
>
> *Debuggability*
> N/A
>
> *Will this feature be supported on all six Blink platforms (Windows, Mac,
> Linux, ChromeOS, Android, and Android WebView)?*
> Yes
>
> *Is this feature fully tested by **web-platform-tests
> <https://urldefense.com/v3/__https://chromium.googlesource.com/chromium/src/*/main/docs/testing/web_platform_tests.md__;Kw!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJhS1gEv1Q$>*
> *?*
> N/A
>
> *Tracking bug*
> https://issues.chromium.org/u/1/issues/404196743
> <https://urldefense.com/v3/__https://issues.chromium.org/u/1/issues/404196743__;!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJiGnAFnbw$>
>
> *Measurement*
> The success of this feature will be measured directly with the owners of a
> small number of targeted scripts with a web-exposed experiment.
>
> *Estimated milestones*
> Shipping on desktop
> 144
> DevTrial on desktop
> 138
> Shipping on Android
> 144
> DevTrial on Android
> 138
> Shipping on WebView
> 144
>
>
> *Link to entry on the Chrome Platform Status*
> https://chromestatus.com/feature/5202380930678784
> <https://urldefense.com/v3/__https://chromestatus.com/feature/5202380930678784__;!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJhn6bDIkw$>
>
> This intent message was generated by Chrome Platform Status
> <https://urldefense.com/v3/__https://chromestatus.com/__;!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJhgyzRyUg$>
> .
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> <https://urldefense.com/v3/__https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAPq58w6*2BOj*2BOOHa1PHp-9auhEBJRGyyLZGWYaJeC3w-E9Y07-g*40mail.gmail.com?utm_medium=email&utm_source=footer__;JSUl!!Bt8RZUm9aw!-6GuUS4M8m3Eym1K4Y1Vts7sGxQ5HhifoRFNweoIoUZ-dzRbuYLifuL-fX5yWDeuNmOQnc25VJglThdCkw$>
> .
>

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