[Webkit-unassigned] [Bug 260129] New: Use 'FrozenArray' for 'thresholds' in IntersectionObserver

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sun Aug 13 13:42:57 PDT 2023


            Bug ID: 260129
           Summary: Use 'FrozenArray' for 'thresholds' in
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
               URL: http://wpt.live/intersection-observer/idlharness.windo
                OS: Unspecified
            Status: NEW
          Keywords: BrowserCompat, WPTImpact
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ahmad.saleem792 at gmail.com
                CC: ashvayka at apple.com, cdumez at apple.com, rniwa at webkit.org

Hi Team,

Currently we are failing one IDLHarness test for Intersection Observer API, it is to use 'FrozenArray' for thresholds.

WPT Test Case: https://wpt.fyi/results/intersection-observer/idlharness.window.html?label=experimental&label=master&aligned

Test Case Live Link: http://wpt.live/intersection-observer/idlharness.window.html

Failing Test -> IntersectionObserver interface: observer must inherit property "thresholds" with the proper type


Web-Spec: https://www.w3.org/TR/intersection-observer/#intersection-observer-interface

In Spec: readonly attribute FrozenArray<double> thresholds;

We have: readonly attribute sequence<double> thresholds; & (double or sequence<double>) threshold = 0.0;


Just wanted to raise, so we can fix this as well. Might be difficult for me right away to do so if someone else can do it, good to take it up.


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