On Tue, Jan 9, 2024 at 7:14 PM Nicolò Ribaudo <nriba...@igalia.com> wrote:

> We would like to ship this together with
> https://groups.google.com/a/chromium.org/g/blink-dev/c/8BbZ_NUVZ5Q/m/HBv8RHNXAAAJ
> (reflecting the updates to the proposal on the HTML/Fetch side), so that
> the new syntax already has the final semantics.
>
> Also, we are in parallel trying to remove the old 'assert' syntax of the
> proposal (
> https://groups.google.com/a/chromium.org/g/blink-dev/c/ZHvzLaJZRvo/m/FgNDBjrtBQAJ
> ).
>
> On Tuesday, January 9, 2024 at 7:11:47 PM UTC+1 Nicolò Ribaudo wrote:
>
>> Contact emails nrib...@igalia.com, s...@chromium.org
>>
>> Explainer None
>>
>> Specification https://github.com/tc39/proposal-import-attributes
>>
>> Summary
>>
>> Import attributes[^1] are a JavaScript feature to allow annotating import
>> declarations, for example `import xxx from "mod" with { type: "json" }'.
>> Chrome originally shipped a previous version of the proposal (in M91) using
>> 'assert' as the keyword. This version has then been updated to use 'with'
>> due to some changes needed while integrating it with HTML for JSON and CSS
>> modules[^2]. [^1]: https://github.com/tc39/proposal-import-attributes/
>> [^2]: https://github.com/whatwg/html/issues/7233
>>
>>
>> Blink component Blink>JavaScript>Language
>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EJavaScript%3ELanguage>
>>
>> TAG review None
>>
>> TAG review status Not applicable
>>
>> Risks
>>
>>
>> Interoperability and Compatibility
>>
>> Other browsers either already implemented or are implementing this
>> feature, so we can expect wide compatibility. Chrome ships an older
>> deprecated version of the proposal, and we need to ship this new version to
>> be compatible with other browsers.
>>
>>
Like other JS language changes, I'm guessing we expect developers to use UA
sniffing to know where it's safe to ship this syntax?


>
>> *Gecko*: No signal
>>
>> *WebKit*: Shipped/Shipping (
>> https://developer.apple.com/documentation/safari-release-notes/safari-17_2-release-notes#JavaScript)
>> Shipped in Safari 17.2
>>
>> *Web developers*: No signals
>>
>> *Other signals*:
>>
>> Security
>>
>> This feature addresses the security concerns raised in
>> https://github.com/WICG/webcomponents/issues/839 Other than that, there
>> are no security concerns related to this feature:
>> https://github.com/tc39/proposal-import-attributes/blob/master/tag-security-and-privacy.md
>>
>>
>> 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
>>
>> None
>>
>>
>> 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
>>
>> This is an ECMAScript feature, and as such it's mostly tested in Test262:
>> -
>> https://github.com/tc39/test262/tree/main/test/language/module-code/import-attributes
>> -
>> https://github.com/tc39/test262/tree/main/test/language/expressions/dynamic-import/import-attributes
>> There are also WPT tests: -
>> https://github.com/web-platform-tests/wpt/tree/master/html/semantics/scripting-1/the-script-element/import-attributes
>>
>>
>> Flag name on chrome://flags --js-flags=--harmony-import-attributes
>>
>> Finch feature name kJavaScriptImportAttributes
>>
>> Requires code in //chrome? False
>>
>> Estimated milestones
>>
>> No milestones specified
>>
>>
>> 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).
>> None
>>
>> Link to entry on the Chrome Platform Status
>> https://chromestatus.com/feature/5205869105250304
>>
>> This intent message was generated by Chrome Platform Status
>> <https://chromestatus.com>.
>>
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