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Explainer https://github.com/whatwg/xhr/pull/394 Specification https://whatpr.org/xhr/394.html#interface-progressevent Summary The ProgressEvent has attributes `loaded` and `total` indicating the progress, and their type is `unsigned long long` now. With this feature, the type for these two attributes is changed to `double` instead, which gives the developer more control over the value. For example, the developers can now create a ProgressEvent with the `total` of 1 and the `loaded` increasing from 0 to 1 gradually. This is aligned with the default behavior of the <progress> HTML element if the max attribute is omitted. Blink component Blink TAG review None TAG review status Pending Risks Interoperability and Compatibility This change will not be visible if the web developers implement the ProgressEvent using non-negative integer in the loaded or total fields. However, if a negative number or a decimal number is used, it would be converted to unsigned integer before, but will be returned without any conversion after this feature is introduced. For example - `new ProgressEvent("event", { loaded: 1.1 }).loaded` is 1 now, but it will be 1.1 after the change. - `new ProgressEvent("event", { loaded: -1 }).loaded` is 18446744073709552000 now, but it will be -1 after the change. Gecko: Positive (https://github.com/whatwg/xhr/pull/394#issuecomment-2607316190) WebKit: Positive (https://github.com/whatwg/xhr/pull/394#issuecomment-2603844507) Web developers: Positive (https://github.com/webmachinelearning/writing-assistance-apis/issues/15) 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? None Debuggability None 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? Yes https://wpt.fyi/results/xhr/progress-events-response-data-gzip.htm?label=experimental&label=master&aligned https://wpt.fyi/results/xhr/progressevent-constructor.html?label=experimental&label=master&aligned https://wpt.fyi/results/xhr/progressevent-interface.html?label=experimental&label=master&aligned Flag name on about://flags None Finch feature name None Non-finch justification This feature changes the definition of existing implementation of ProgressEvent so it's not possible to conduct a finch experiment. Requires code in //chrome? False Estimated milestones Shipping on desktop 135 Anticipated spec changes Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (eg links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (eg, 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/5067669587623936?gate=5176277298053120 This intent message was generated by Chrome Platform Status. -- 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 blink-dev+unsubscr...@chromium.org. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/67aec131.2b0a0220.80420.0241.GAE%40google.com.
