Hi there,

I think this should be an Intent to Ship, rather than a PSA - changing event order can break lots of hard-coded assumptions.

Can you resend as an Intent to Ship and fill out missing details, especially spec link & Interop and Compat considerations? If you have any evidence that this is safe to ship, please include it. :)

thanks,
Mike

On 5/27/26 3:20 a.m., Chromestatus wrote:
*Contact emails*
[email protected]

*Specification*
/No information provided/

*Summary*
Currently Chromium applies the default action of a mouseup event (e.g. collapsing or committing a drag-selection in a text input) after the click event has already been dispatched. This violates developer expectations: a click handler that reads selection state sees stale data from before the mouseup default action ran. This change moves the mouseup default-action step to run before the click event is dispatched, so that selection (and any other mouseup side effects) is already settled when click handlers execute.

*Blink component*
Blink>Input <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EInput%22>

*Web Feature ID*
mouse-events <https://webstatus.dev/features/mouse-events>

*Risks*


*Interoperability and Compatibility*
/No information provided/

/Gecko/: No signal

/WebKit/: No signal

/Web developers/: No signals

/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)?*
Yes

*Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
Yes




*Tracking bug*
https://issues.chromium.org/issues/40686462

*Estimated milestones*
Shipping on desktop     152
DevTrial on desktop     150
Shipping on Android     152
DevTrial on Android     150
Shipping on WebView     152



*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5298387739082752

This intent message was generated by Chrome Platform Status <https://chromestatus.com>.
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