Thanks! I see in the ChromeStatus entry that "Supported on all platforms" is now "Yes", but the Firefox and Safari positions still show Positive. Could you confirm these should be Shipped/Shipping or do those browsers not yet fully support the behavior we intend to ship?
Thanks, Dan On Monday, January 12, 2026 at 1:27:58 PM UTC-8 [email protected] wrote: > @dan - updated, sorry > [email protected] schrieb am Montag, 12. Januar 2026 um 19:25:19 UTC+1: > >> *> Gecko: Positive* >> *> WebKit: Positive* >> >> Should these say Shipped/Shipping? Firefox and Safari pass the WPT: >> https://wpt.fyi/results/fetch/data-urls?label=master&label=stable&aligned&q=fetch%2Fdata-urls%2Fprocessing.any.html >> >> *> Will this feature be supported on all six Blink platforms (Windows, >> Mac, Linux, ChromeOS, Android, and Android WebView)?* >> *> No* >> >> Should this be Yes? In a quick scan of the CL I didn't see anything >> scoping this to a particular platform(s). >> >> -- Dan >> On Monday, January 12, 2026 at 5:27:41 AM UTC-8 [email protected] wrote: >> >>> *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/8b65037e-dbb8-4888-9752-d793b511ec7dn%40chromium.org.
