Tracker for External Browser Bugs, Library Bugs, and Features

This page will track the React Spectrum team's contributions to external non-Adobe libraries, browsers, and specifications.

Original issues

These are issues that were originally found, reported, and worked around by the React Spectrum team.

Type	Category	Project	Name	Author	Submit Date
Bug	Browser	WebKit	Intl.NumberFormat formats ar-AE numbers differently from other browsers	Rob Snow	2020-10-23
Bug	Browser	WebKit	PointerDown not fired after PointerUp on disabled form element	Rob Snow	2020-11-19
Bug	Browser	WebKit	Safari on iOS fires "pointerenter" with mouse pointerType in addition to touch	Devon Govett	2020-07-21
Bug	Browser	WebKit	Safari/VoiceOver BUG: WAI-ARIA Listbox option with aria-labelledby announces as only "text"	Michael Jordan	2020-03-19
Bug	Browser	WebKit	aria-modal="true" autofocuses the first focusable child when inside an iframe	Devon Govett	2020-05-14
Bug	Browser	WebKit	CSS hover and "pointer: fine" media queries do not evaluate to true with iOS 13.4 mouse support	Devon Govett	2020-03-19
Bug	Browser	WebKit	AX: Radiogroup orientation horizontal left and right arrow keys go the wrong way in RTL	Rob Snow	2020-05-29
Bug	Browser	WebKit	AX: Updating aria-hidden on a role="row" is not reflected in VoiceOver on iOS	Devon Govett	2021-03-02
Bug	Browser	WebKit	AX: Pointer events are not fired by VoiceOver inside iframe	Devon Govett	2021-03-02
Bug	Browser	WebKit	pointercancel event not fired on drag start	Devon Govett	2021-03-02
Bug	Browser	WebKit	Auto scroll on drag should be enabled on macOS	Devon Govett	2021-03-02
Bug	Browser	WebKit	Intl.DateTimeFormat incorrectly parses patterns with 'h' literal	Devon Govett	2021-08-19
Bug	Browser	WebKit	dragleave and drop events are not fired if dropEffect is set to link on iOS	2022-09-01
Bug	Browser	WebKit	AX: Label of aria grid is not announced when contained within a main landmark	Devon Govett	2022-04-29
Bug	Browser	WebKit	Intl.DateTimeFormat returns ethiopic-amete-alem rather than ethioaa for calendar in resolvedOptions	Devon Govett	2022-06-13
Bug	Browser	Firefox	Mouse events not guaranteed to fire after pointer events	Rob Snow	2020-11-06
Bug	Browser	Firefox	[Bug] Talkback doesn't explicitly announce aria-disabled li element	Daniel Lu	2021-01-29
Bug	Browser	Firefox	selectstart event does not fire for Select All command	Devon Govett	2021-11-19
Bug	Browser	Chrome	Accessible Name incorrect when self-reference and use aria-label and value	James Nurthen	2020-12-16
Bug	Browser	Chrome	VisualViewport resize event never fires inside an iframe	Devon Govett	2021-06-07
Bug	Browser	Chrome	Intl.DateTimeFormat formatting time that matches timezone offset produces 24:00:00	Devon Govett	2021-08-19
Bug	Browser	Chrome	Intl.DisplayNames returns original string for non-country regions	Devon Govett	2021-11-02
Bug	Browser	Chrome	ondragstart still fires when pointerdown and mousedown events are defaultPrevented	Daniel Lu	2022-03-08
Bug	Browser	Chrome	Touch-drag: dragend's dataTransfer's dropEffect is always "none", even when set in dragover	Daniel Lu	2022-08-17
Bug	Browser	Chrome	dataTransfer.effectAllowed is always "copyMove" on Android	Devon Govett	2022-09-01
Bug	Browser	Chrome	Extraneous blur events fired by VoiceOver with relatedTarget null	Devon Govett	2023-08-17
Bug	AT	Talkback	Talkback does not act correctly for input type=range which have different max and min	James Nurthen	2020-12-18
Bug	AT	Talkback	Talkback acts strangely when step used with input type=range	James Nurthen	2020-12-18
Bug	AT	Talkback	Talkback cannot reduce a slider with negative range	James Nurthen	2020-12-18
Bug	AT	Talkback	Talkback not reading aria-valuetext on an input type=range	James Nurthen	2020-12-18
Bug	AT	WebKit	AX: VoiceOver for iOS does not announce required state for an input with both aria-required="true" and aria-roledescription	Michael Jordan	2021-01-27
Bug	AT	WebKit	AX: [iOS] [VoiceOver] [Safari] Element with role="spinbutton" announces with value as a percent, even when no aria-valuemin or aria-valuemax is defined	Michael Jordan	2021-01-28
Bug	AT	WebKit	AX: [iOS] [VoiceOver] [Safari] VoiceOver miscalculates hit target of elements within a Storybook iframe, resulting in unexpected input with the wrong item selected	Michael Jordan	2021-03-15
Bug	Library	React	React 17.0.0-rc.1 checkboxes and radio groups sometimes fire onChange incorrectly	Devon Govett	2020-09-15
Bug	Library	Preact	autoFocus not being applied	Niklas Mischkulnig	2020-08-25
Bug	Library	Preact	input type=checkbox cannot be a controlled component	Niklas Mischkulnig	2020-08-24
Bug	Library	Preact	Infinite loop caused by unstable context value	Niklas Mischkulnig	2020-08-25
Bug	Library	Preact	onKeyDownCapture and onKeyDown overwrite each other	Niklas Mischkulnig	2020-09-02
PR	Library	Preact	Fix capturing and non-capturing listeners on the same element	Devon Govett	2020-09-09
PR	Library	Testing library	Fire mouse events with the correct properties	Devon Govett	2020-05-22
Feat	Library	Quicklink	Option to use prerender where available?	Devon Govett	2020-07-12
Bug	Spec	UI Events	Update focusin/focusout event order to match implementations?	Devon Govett	2020-08-25
Feat	Spec	ECMA 402	Add graphics units to NumberFormat	Devon Govett	2020-09-15
Feat	Spec	ECMA 402	Add locale sensitive substring matching functions to Intl.Collator	Devon Govett	2020-10-12
Feat	Spec	ECMA 402	Accessing the sequence of eras of a calendar	Devon Govett	2021-08-19
Feat	Spec	HTML	Support multiple items of the same type in DataTransfer API for drag and drop	Devon Govett	2020-11-08
Feat	Spec	UI Events	A way to determine what the value of an input will be if beforeinput is not prevented	Devon Govett	2021-01-22
Bug	Spec	UI Events	visibilitychange fired in different order when arriving vs departing	Rob Snow	2021-04-30
Bug	Spec	UI Events	visibilitychange fires in a bad order	Rob Snow	2021-04-30
Bug	Spec	ECMA 402	Default hour-cycle computation can resolve to non-preferred hour format	Devon Govett	2021-08-19
Bug	Spec	Temporal	Should PlainYearMonth throw when adding days?	Devon Govett	2021-08-19
Bug	Spec	Typescript	ResolvedNumberFormatOptions is missing currencySign option	Rob Snow	2021-05-4
Bug	Node	NumberFormat	Intl.NumberFormat resolvedOptions style is wrong	Rob Snow	2021-06-15
Bug	AT	Talkback	Click event from TalkBack double tap doesn't have the correct default PointerEvent attributes	Daniel Lu	2021-11-12

Duplicate issues

These are issues that were not originally opened by the React Spectrum team, but that we ran into and worked around.

Type	Category	Project	Name	Author	Comment Date
Bug	Browser	WebKit	AX: aria-label and aria-labelledby ignored when for-id association present on form input	Devon Govett	2020-12-17
Bug	Browser	WebKit	Clicking on a non-text input element does not give it focus
Bug	Browser	WebKit	releasePointerCapture() not working for implicit capture; can't opt-in to pointerenter/leave for touches
Bug	Browser	WebKit	AX: activedescendant on combobox not honored correctly in VoiceOver
Bug	Browser	WebKit	aria-selected options in listboxes not properly announced	James Nurthen	2020-10-07
Bug	Browser	WebKit	AX: combobox aria-activedescendant is not read in VoiceOver unless the listbox has display: none until input has focus
Feat	Browser	WebKit	Enable ability to prevent scrolling in Element.focus()
Bug	Browser	WebKit	PointerEvent has 0 as pressure when the input device is not pressure-sensitive	Daniel Lu	2021-11-10
Bug	Browser	WebKit	Interop issue with position: sticky within contain: paint
Bug	Browser	WebKit	dataTransfer.effectAllowed returns "all" when it's set to "copy" or "move" during dragstart	Devon Govett	2022-09-01
Bug	Browser	WebKit	modifier key state flags do not function on drag events	Devon Govett	2022-09-01
Bug	Browser	WebKit	MouseEvent altKey property only changes on dragStart	Devon Govett	2022-09-01
Bug	Browser	Chrome	Meter element, and new ARIA meter role, should be exposed via IA2_ROLE_LEVEL_BAR; not ROLE_SYSTEM_PROGRESSBAR
Bug	Browser	Chrome	compositions should end with "insertFromComposition" input events	Devon Govett	2021-01-28
Bug	Browser	Chrome	Intl.DateTimeFormat formatting time that matches timezone offset produces 24:00:00	Devon Govett	2021-07-14
Bug	Browser	Firefox	The left and right keyboard navigation of radio buttons is backwards.
Bug	Browser	Firefox	calling this.blur() in onfocus handler or this.focus() in an onblur handler do not work
Bug	Browser	Firefox	[css-grid][flex]Intrinsic size on grid-subflex / subbitem keeps the image width whilst image is resized.	Rob Snow	2021-8-20
Bug	Browser	Firefox	Intl.DateTimeFormat: wrong era "A" instead of "AD" for Gregorian calendar using era: 'short' option	Devon Govett	2022-05-19
Bug	Browser	Firefox	Keypress not recognised as user event for popup blocker	Devon Govett
Bug	Library	React	Mouseenter event not triggered when cursor moves from disabled button	Rob Snow	2020-12-1
Feat	Browser	Chrome	ImplementWheelEvent.webkitDirectionInvertedFromDevice	Devon Govett	2020-10-29
Feat	Browser	Firefox	HTML <meter> not spoken by screen readers
Feat	Spec	UI Events	Expose 'direction-inversion' in wheel events	Devon Govett	2020-10-29
Bug	Spec	ARIA	Combobox shouldn't need aria-controls until the popup is rendered	James Nurthen	2020-10-07
Bug	AT	aXe	Bug: does not correctly handle the option to have elements with role="group" in a listbox context ARIA 1.2		2021-9-7
BUG	Browser	Firefox	overflow:auto causes DIV to get tab focus even if it has no scrollbars

Original issues we haven't tried to fix yet

These are issues that were originally opened by the React Spectrum team and we haven't determined a fix for.

Type	Category	Project	Name	Author	Submit Date
Bug	Browser	Firefox	Click fired on wrong element in touch compared to mouse	Rob Snow	2021-02-10
Bug	Browser	Chrome	Click fired on wrong element in responsive mode	Rob Snow	2020-11-17
Bug	Browser	WebKit	AX: Safari/VoiceOver: Table headers aria-describedby isn't announced by VoiceOver	Daniel Lu	2021-07-28
Bug	AT	VoiceOver	AX: [macOS][Accessibility][VoiceOver] VoiceOver fails to announce selected state for rows within WAI-ARIA data grid	Michael Jordan	2021-01-05
Bug	AT	VoiceOver	AX: VoiceOver does not announce row/column header and index information when navigating focusable rows or cells within WAI-ARIA data grid	Michael Jordan	2021-02-17
Bug	AT	VoiceOver	AX: VoiceOver table navigation breaks when a virtualized data grid scrolls	Michael Jordan	2021-02-18
Bug	AT	VoiceOver	Talkback doesn't fire a click on a visually hidden element with specific devices	Daniel Lu	2022-04-19
Bug	Browser	WebKit	Text within dragged element is dimmed on iPad	Devon Govett	2021-03-22
Bug	Browser	Firefox	Incorrect height measured when "overflow" style is changed in textarea	Daniel Lu	2022-08-24
Bug	Browser	Firefox	Scroll position of textarea is lost if "overflow" style is modified	Daniel Lu	2022-08-29
Bug	Browser	Firefox	Click count (event.detail) is different compared to Chrome/Safari when clicking a label element	Rob Snow	2022-10-19
Bug	AT	Talkback	Element with role=link is not available when swiping through page	James Nurthen	2023-2-2
Bug	AT	Talkback	Talkback is unable to access combobox dropdown options via swiping left/right	Daniel Lu	2023-3-21
Bug	Browser	Firefox	Indeterminate progress bar gets set a value of 50	Yihui Liao	2023-10-18
Bug	Browser	Chrome	Calling scrollIntoView on container with scrollPadding causes the contents to erroneously scroll	Daniel Lu	2024-9-11

Duplicate issues we're trying to fix

These are issues that were not originally opened by the React Spectrum team, but that we ran into and are submitting fixes for.

Type	Category	Project	Name	Author	Comment Date
Bug	CSS Preprocesser	reduce-css-calc	Fix Parse error on custom property fallback Fix in postcss-calc once spectrum-css upgrades	Rob Snow	2020-12-18
Bug	Browser	Webkit	pointerdown events are not fired for clicks that follow a drag&drop	-	2019-09-26

Issues that we've encountered and haven't tried to fix/workaround yet

Type	Category	Project	Name	Author	Comment Date
Bug	Browser	Chrome	Issue 1293803: Drag event handlers stop working when using custom MIME type with setData on dragstart
Bug	AT	Webkit	Bug 190437 - AX: VoiceOver does not perceive changes to text node content in HTML headings and ARIA headings Seems to be fixed in iOS 15	-	-
Bug	Browser	Chrome	Issue 229301: Touch initiated drag and drop doesn't work on Windows with touch screen	-	-
Bug	Browser	Chrome	sticky + scroll padding + scrollIntoView = bug	-	-
Bug	Browser	Safari	scroll-padding causes unwanted scroll on sticky elements	-	-