On Fri, May 24, 2024 at 7:12 PM Panos Astithas <pastit...@google.com> wrote:

>
>
> On Wed, May 22, 2024 at 2:16 AM Yoav Weiss (@Shopify) <
> yoavwe...@chromium.org> wrote:
>
>>
>>
>> On Wed, May 22, 2024 at 10:29 AM Yoav Weiss (@Shopify) <
>> yoavwe...@chromium.org> wrote:
>>
>>>
>>>
>>> On Tuesday, May 21, 2024 at 1:04:44 PM UTC+2 Yoav Weiss wrote:
>>>
>>> Contact emailsyoavwe...@chromium.org
>>>
>>> Explainerhttps://github.com/guybedford/import-maps-extensions#integrity
>>>
>>> Specificationhttps://github.com/whatwg/html/pull/10269
>>>
>>> The PR is ready to land, but we're holding off on that for 2 weeks at
>>> Mozilla's request. See below.
>>>
>>> Summary
>>>
>>> Imported ES modules can't currently have their integrity checked, and
>>> hence cannot run in environments that require Subresource Integrity or with
>>> `require-sri-for` CSP directives. This feature adds an `integrity` section
>>> to import maps, enabling developers to map ES module URLs to their
>>> integrity metadata, and ensure they only load when they match their
>>> expected hashes.
>>>
>>>
>>> Blink componentBlink>Loader
>>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ELoader>
>>>
>>> TAG reviewhttps://github.com/w3ctag/design-reviews/issues/944
>>>
>>> TAG review statusIssues addressed
>>>
>>> Risks
>>>
>>>
>>> Interoperability and Compatibility
>>>
>>> On the interoperability front, this got a positive position from WebKit,
>>> and I'm implementing the feature there
>>> <https://github.com/whatwg/html/pull/10269>. Mozilla didn't object to
>>> the feature, but asked
>>> <https://docs.google.com/document/d/1iaarr4Ho715CUULrvi_LD3TwshAcN2odDLBBEK0FjH0/edit#bookmark=id.li7pdpi5uloq>
>>>
>>>
>> I just realized that the meeting notes are not publicly viewable.
>> +Panos Astithas <pastit...@google.com> - would you be able to open them
>> up to the public somehow? (e.g. as a Chromium.org doc)
>>
>
> They were published
> <https://github.com/whatwg/html/issues/10340#:~:text=Benjamin%3A%20I%27d%20like%20a%20further%20two%20weeks>
>  that
> same day, we try to post the minutes publicly in less than 24 hours.
>

Oops!! My bad for using the wrong artifact!


>
>>
>>
>>> for a couple more weeks to evaluate it and provide a position, as they
>>> might be planning broader-scope work on the front of application integrity,
>>> and want to make sure this doesn't collide with it.
>>>
>>>
>>> On the compatibility front, the feature is polyfilled
>>> <https://github.com/guybedford/es-module-shims/pull/424>, but it's turned
>>> off for browsers that support import maps
>>> <https://github.com/guybedford/es-module-shims#:~:text=The%20ES%20Module%20Shims%20polyfill%20will%20analyze%20the%20browser%20to%20see%20if%20it%20supports%20import%20maps.%20If%20it%20does%2C%20it%20doesn%27t%20do%20anything%20more>
>>> .
>>>
>>>
>>> Adding Guy Bedford, the polyfill author to this thread. Guy, can you
>>> confirm this is the case?
>>>
>>> *Gecko*: No signal
>>> <https://github.com/mozilla/standards-positions/issues/1010>
>>>
>>> *WebKit*: Support
>>> <https://github.com/WebKit/standards-positions/issues/335>
>>>
>>>
>>> WebKit PR <https://github.com/WebKit/WebKit/pull/28253> has landed.
>>>
>>>
>>>
>>>
>>> *Web developers*: Positive
>>> <https://x.com/yoavweiss/status/1778067431417954803>
>>> This is based on a proposal from a developer (Guy Bedford).
>>> Multiple Shopify properties are interested in this, to enable using ES
>>> modules as bundler output in security sensitive environments. Asking about
>>> this on twitter and mastodon showed that some developers are interested in
>>> this, while others discount SRI in general.
>>>
>>> *Other signals*:
>>>
>>> Activation
>>>
>>> As long as support is not ubiquitous, the `integrity` part of import
>>> maps will be ignored in non-supporting browsers, resulting in scripts
>>> loading in those browsers even if they're supposed to fail their integrity
>>> checks.
>>>
>>> There's also a polyfill
>>> <https://github.com/guybedford/es-module-shims/pull/424> that would
>>> enable sites to get integrity support for ES modules in browsers that don't
>>> support import maps at all. That's an increasingly slim part of the browser
>>> population.
>>>
>>>
>>> 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?
>>>
>>>
>>> None
>>>
>>>
>>> Debuggability
>>>
>>> No issues in particular. The feature does emit a few console errors in
>>> cases where parsing fails, to help developers debug this.
>>>
>>>
>>> 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://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
>>> ?Yes
>>>
>>> https://chromium-review.googlesource.com/c/chromium/src/+/5441822
>>>
>>>
>>> Flag name on chrome://flagsNone
>>>
>>> Finch feature nameImportMapIntegrity
>>>
>>> Requires code in //chrome?False
>>>
>>> Tracking bughttps://issues.chromium.org/issues/334251999
>>>
>>> MeasurementNo use-counter was added so far. If one is needed, I can add
>>> it when flipping on the flag.
>>>
>>>
>>> I decided to add a usecounter
>>> <https://chromium-review.googlesource.com/c/chromium/src/+/5555942>.
>>>
>>>
>>>
>>> Availability expectationFeature is available in WebKit within a few
>>> months of launch in Chromium, if not before. Still waiting on Mozilla's
>>> position and plans.
>>>
>>> Adoption expectation
>>> I expect web developers that want to rely on SRI for ES modules to use
>>> the feature directly without requiring the polyfill.
>>>
>>> Adoption planUpdate MDN <https://github.com/mdn/mdn/issues/541> on the
>>> integrity section.
>>>
>>>
>>> MDN PR <https://github.com/mdn/content/pull/33712>.
>>>
>>>
>>>
>>>
>>> Estimated milestonesShipping on desktop127Shipping on Android127Shipping
>>> on WebView127
>>>
>>> Anticipated spec changes
>>>
>>> Open questions about a feature may be a source of future web compat or
>>> interop issues. Please list open issues (e.g. links to known github issues
>>> in the project for the feature specification) whose resolution may
>>> introduce web compat/interop risk (e.g., changing to naming or structure of
>>> the API in a non-backward-compatible way).
>>>
>>>
>>> No open questions.
>>>
>>> Link to entry on the Chrome Platform Statushttps://chromestatus.com/
>>> feature/5157245026566144?gate=5203447331946496
>>>
>>> Links to previous Intent discussionsIntent to prototype: https://groups.
>>> google.com/a/chromium.org/d/msgid/blink-dev/
>>> CAOaYce5MGsXBzw6K_py5yEj_Vx6o_%3DA4CecJm_gaAyU7H6wfPQ%40mail.gmail.com
>>>
>>> This intent message was generated by Chrome Platform Status
>>> <https://chromestatus.com/>.
>>>
>>>

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