*Contact emails* [email protected] *Explainer* https://chromium-review.googlesource.com/c/chromium/src/+/7135039
*Specification* https://fetch.spec.whatwg.org/#data-url-processor *Summary* Preserve MIME type parameters (e.g., charset, boundary) in data URL Content-Type headers per the Fetch Standard. CL: https://chromium-review.googlesource.com/c/chromium/src/+/7135039 *Blink component* Blink>Network>FetchAPI <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ENetwork%3EFetchAPI%22> *Web Feature ID* fetch <https://webstatus.dev/features/fetch> *Motivation* Currently, Chromium only extracts the charset parameter from data URLs and discards other MIME type parameters. Per the Fetch Standard, data URL MIME type parameters should be preserved in the Content-Type header. For example: - data:text/plain;a=b,X should return Content-Type: text/plain;a=b - data:;charset=" x",X should return Content-Type: text/plain;charset=" x" This change brings Chromium into compliance with the Fetch Standard and improves web compatibility with other browsers. Spec: https://fetch.spec.whatwg.org/#data-url-processor *Initial public proposal* https://chromium-review.googlesource.com/c/chromium/src/+/7135039 *TAG review* *No information provided* *TAG review status* Not applicable *Risks* *Interoperability and Compatibility* *No information provided* *Gecko*: Positive *WebKit*: Positive *Web developers*: Positive *Other signals*: *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 information provided* *Debuggability* *No information provided* *Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?* No *Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* Yes external/wpt/fetch/data-urls/processing.any.html *Flag name on about://flags* *No information provided* *Finch feature name* DataUrlMimeTypeParameterPreservation *Rollout plan* (RARE) Experiment users ramp up over time *Requires code in //chrome?* False *Tracking bug* https://issues.chromium.org/issues/40487194 *Estimated milestones* Shipping on desktop 146 Shipping on Android 146 *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 information provided* *Link to entry on the Chrome Platform Status* https://chromestatus.com/feature/4874471565557760?gate=6595063650058240 This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFmjHKSP4AtUiGx9BxLTzFc2EuvUDF94afgsAQ9afX6Fp1%2Bv0Q%40mail.gmail.com.
