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api.Window.load_event - is not working as expected in the latest ios safari

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

needs triageThis issue needs to be confirmedThis issue needs to be confirmed

Status: Open.

#29527 In mdn/browser-compat-data;

· rbatallasOshyn opened on Apr 22, 2026

Firefox release "retired" before new release is "current"

needs triageThis issue needs to be confirmedThis issue needs to be confirmed

Status: Open.

#29522 In mdn/browser-compat-data;

· caugner opened on Apr 22, 2026

css.properties.baseline-shift - baseline value not documented

needs triageThis issue needs to be confirmedThis issue needs to be confirmed

Status: Open.

#29513 In mdn/browser-compat-data;

· estelle opened on Apr 20, 2026

Prompt API - Missing compat data for Chrome and Edge

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#29473 In mdn/browser-compat-data;

· jmedley opened on Apr 13, 2026

api.Document.startViewTransition.updateCallback_parameter - Incorrect Firefox support

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

needs collector testNeeds a custom BCD collector testNeeds a custom BCD collector test

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#29455 In mdn/browser-compat-data;

· mathewhodson opened on Apr 10, 2026

api.PublicKeyCredential - should be supported in WebView

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#29452 In mdn/browser-compat-data;

· nsatragno opened on Apr 10, 2026

api.DeviceOrientationEvent is deprecated on Firefox, but this isn't mentioned on the page

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#29409 In mdn/browser-compat-data;

· leandrumartin opened on Apr 6, 2026

Bug: Installation toolchain still fails on Windows

infraInfrastructure issues (npm, GitHub Actions, releases) of this projectInfrastructure issues (npm, GitHub Actions, releases) of this project

Status: Open.

#29405 In mdn/browser-compat-data;

· hamishwillee opened on Apr 5, 2026

api.Element.animationcancel_event - chromium supports onanimationcancel property

blockedBlocked and unable to proceed.Blocked and unable to proceed.

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

needs collector updateThis PR needs a corresponding update to openwebdocs/mdn-bcd-collector.This PR needs a corresponding update to openwebdocs/mdn-bcd-collector.

p2High priority – Community PRs highly encouraged.High priority – Community PRs highly encouraged.

Status: Open.

#29376 In mdn/browser-compat-data;

· xBZZZZ opened on Mar 31, 2026

api.PerformanceObserver.observe - Missing options data

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

needs collector testNeeds a custom BCD collector testNeeds a custom BCD collector test

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#29426 In mdn/browser-compat-data;

· 827652549 opened on Mar 31, 2026

api.Navigator.serviceWorker - supported in Firefox Private since 139

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

p4Low priority – Community PRs accepted.Low priority – Community PRs accepted.

Status: Open.

#29366 In mdn/browser-compat-data;

· marto55555 opened on Mar 30, 2026

html.elements.meta.name.color-scheme - Not working in Samsung Internet Browser

data:htmlCompat data for HTML elements. https://developer.mozilla.org/docs/Web/HTMLCompat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML

meeting agendaIssues or pull requests in need of discussion in a project meeting.Issues or pull requests in need of discussion in a project meeting.

Status: Open.

#29347 In mdn/browser-compat-data;

· ElManouche opened on Mar 26, 2026