compute-baseline: Can features be baseline when they don't have a specification?

[Elchi3]

Not sure if this is intended behavior.

If you compute the status for ShadowRoot.elementFromPoint and ShadowRoot.elementsFromPoint:

import { computeBaseline } from "compute-baseline";

console.log(
JSON.parse(computeBaseline({compatKeys: ["api.ShadowRoot.elementFromPoint", "api.ShadowRoot.elementsFromPoint"], withAncestors: false}).toJSON())
);

you get

{
  baseline: 'high',
  baseline_low_date: '2020-01-15',
  baseline_high_date: '2022-07-15',
  support: {
    chrome: '53',
    chrome_android: '53',
    edge: '79',
    firefox: '63',
    firefox_android: '63',
    safari: '11.1',
    safari_ios: '11.3'
  }
}

even though these two keys have no specification.

Issue for them to be specified: w3c/csswg-drafts#5886

Can features be baseline when they don't have a valid specification?

[foolip]

This is unclear from the definition in https://github.com/web-platform-dx/web-features/blob/main/docs/baseline.md#interoperable-low-status. The only mention of specs in the whole document is "The specification text contains discouraging language, such as a deprecation notice, obsolescence warning, or legacy tag" but the case where there is no spec isn't mentioned.

I think we'll need to make a case-by-case judgment about this, and we haven't given these two keys a Baseline status yet, they're not part of any feature.

[Elchi3]

fwiw, I see 310 IDs in BCD where deprecated is false and standard_track is also false. So this question will arise for about 300 IDs. (it might also be that we need to mark some of them as deprecated: true in BCD, or that a spec exists but hasn't been added.)

Details

1. api.AbortPaymentEvent
2. api.AbortPaymentEvent.AbortPaymentEvent
3. api.AbortPaymentEvent.respondWith
4. api.BeforeInstallPromptEvent
5. api.BeforeInstallPromptEvent.BeforeInstallPromptEvent
6. api.BeforeInstallPromptEvent.platforms
7. api.BeforeInstallPromptEvent.prompt
8. api.BeforeInstallPromptEvent.userChoice
9. api.CredentialsContainer.get.identity_option.error_api
10. api.DataTransfer.addElement
11. api.DataTransfer.mozCursor
12. api.DataTransfer.mozSourceNode
13. api.DataTransfer.mozUserCancelled
14. api.Directory
15. api.Directory.getFiles
16. api.Directory.getFilesAndDirectories
17. api.Directory.name
18. api.Directory.path
19. api.Document.afterscriptexecute_event
20. api.Document.beforescriptexecute_event
21. api.Document.browsingTopics
22. api.Document.caretRangeFromPoint
23. api.Document.mozSetImageElement
24. api.Document.releaseCapture
25. api.Element.afterscriptexecute_event
26. api.Element.ariaRelevant
27. api.Element.beforescriptexecute_event
28. api.Element.gesturechange_event
29. api.Element.gestureend_event
30. api.Element.gesturestart_event
31. api.Element.requestPointerLock.options_unadjustedMovement_parameter
32. api.Element.scrollIntoViewIfNeeded
33. api.Element.scrollLeftMax
34. api.Element.scrollTopMax
35. api.Element.webkitmouseforcechanged_event
36. api.Element.webkitmouseforcedown_event
37. api.Element.webkitmouseforceup_event
38. api.Element.webkitmouseforcewillbegin_event
39. api.ElementInternals.ariaRelevant
40. api.Event.explicitOriginalTarget
41. api.Event.originalTarget
42. api.FileSystemHandle.move
43. api.FileSystemHandle.remove
44. api.GPUComputePassEncoder.writeTimestamp
45. api.GPURenderPassEncoder.writeTimestamp
46. api.Gamepad.vibrationActuator
47. api.GestureEvent
48. api.GestureEvent.altKey
49. api.GestureEvent.clientX
50. api.GestureEvent.clientY
51. api.GestureEvent.ctrlKey
52. api.GestureEvent.initGestureEvent
53. api.GestureEvent.metaKey
54. api.GestureEvent.rotation
55. api.GestureEvent.scale
56. api.GestureEvent.screenX
57. api.GestureEvent.screenY
58. api.GestureEvent.shiftKey
59. api.GestureEvent.target
60. api.HTMLCanvasElement.mozPrintCallback
61. api.HTMLElement.anchorElement
62. api.HTMLIFrameElement.browsingTopics
63. api.HTMLInputElement.incremental
64. api.HTMLInputElement.search_event
65. api.HTMLPortalElement
66. api.IDBDatabase.transaction.option_durability_parameter_readwriteflush
67. api.IdentityCredential.isAutoSelected
68. api.MediaDevices.getDisplayMedia.preferCurrentTab_option
69. api.MediaStream.active_event
70. api.MediaStream.inactive_event
71. api.MediaStreamTrackGenerator
72. api.MediaStreamTrackGenerator.MediaStreamTrackGenerator
73. api.MediaStreamTrackGenerator.writable
74. api.Metadata
75. api.Metadata.modificationTime
76. api.Metadata.size
77. api.MouseEvent.layerX
78. api.MouseEvent.layerY
79. api.Navigator.buildID
80. api.Navigator.globalPrivacyControl
81. api.Navigator.registerProtocolHandler.scheme_parameter_cabal
82. api.Navigator.registerProtocolHandler.scheme_parameter_dat
83. api.Navigator.registerProtocolHandler.scheme_parameter_did
84. api.Navigator.registerProtocolHandler.scheme_parameter_dweb
85. api.Navigator.registerProtocolHandler.scheme_parameter_ethereum
86. api.Navigator.registerProtocolHandler.scheme_parameter_hyper
87. api.Navigator.registerProtocolHandler.scheme_parameter_ipfs
88. api.Navigator.registerProtocolHandler.scheme_parameter_ipns
89. api.Navigator.registerProtocolHandler.scheme_parameter_ssb
90. api.Permissions.permission_clipboard-read
91. api.Permissions.requestAll
92. api.Request.Request.init_browsingTopics_parameter
93. api.SVGStringList.length
94. api.SVGTransformList.length
95. api.Screen.availLeft
96. api.Screen.availLeft.relative-multi-screen
97. api.Screen.availTop
98. api.Screen.availTop.relative-multi-screen
99. api.Screen.left
100. api.Screen.left.relative-multi-screen
101. api.Screen.top.relative-multi-screen
102. api.Selection.getComposedRanges.returns_multiple_ranges
103. api.ServiceWorkerGlobalScope.abortpayment_event
104. api.ShadowRoot.elementFromPoint
105. api.ShadowRoot.elementsFromPoint
106. api.ShadowRoot.getSelection
107. api.SourceBuffer.appendBufferAsync
108. api.SourceBuffer.removeAsync
109. api.SpeechGrammar.SpeechGrammar
110. api.StorageManager.estimate.usageDetails
111. api.Window.dump
112. api.Window.find
113. api.Window.fullScreen
114. api.Window.getDefaultComputedStyle
115. api.Window.getDefaultComputedStyle.pseudo_element_support
116. api.Window.mozInnerScreenX
117. api.Window.mozInnerScreenY
118. api.Window.resolveLocalFileSystemURL
119. api.Window.scrollByLines
120. api.Window.scrollByPages
121. api.Window.scrollMaxX
122. api.Window.scrollMaxY
123. api.Window.sizeToContent
124. api.Window.updateCommands
125. api.WorkerNavigator.globalPrivacyControl
126. api.WorkletSharedStorage.context
127. api.console.dir_static.options_colors_parameter
128. api.console.dir_static.options_depth_parameter
129. api.console.dir_static.options_showHidden_parameter
130. api.console.profileEnd_static
131. api.console.profile_static
132. api.console.timeStamp_static
133. api.createImageBitmap.options_imageOrientation_parameter.none
134. api.fetch.init_browsingTopics_parameter
135. css.at-rules.font-face.src.format_variations
136. css.at-rules.media.-webkit-transform-2d
137. css.at-rules.media.prefers-color-scheme.respects-inherited-scheme
138. css.properties.-moz-image-region
139. css.properties.-moz-orient
140. css.properties.-moz-orient.block
141. css.properties.-moz-orient.inline
142. css.properties.-webkit-app-region
143. css.properties.-webkit-border-before
144. css.properties.-webkit-border-horizontal-spacing
145. css.properties.-webkit-border-vertical-spacing
146. css.properties.-webkit-box-reflect
147. css.properties.-webkit-column-axis
148. css.properties.-webkit-column-break-after
149. css.properties.-webkit-column-break-before
150. css.properties.-webkit-column-break-inside
151. css.properties.-webkit-column-progression
152. css.properties.-webkit-cursor-visibility
153. css.properties.-webkit-hyphenate-limit-after
154. css.properties.-webkit-hyphenate-limit-before
155. css.properties.-webkit-hyphenate-limit-lines
156. css.properties.-webkit-initial-letter
157. css.properties.-webkit-line-align
158. css.properties.-webkit-line-box-contain
159. css.properties.-webkit-line-grid
160. css.properties.-webkit-line-snap
161. css.properties.-webkit-locale
162. css.properties.-webkit-logical-height
163. css.properties.-webkit-logical-width
164. css.properties.-webkit-margin-after
165. css.properties.-webkit-margin-before
166. css.properties.-webkit-mask-box-image
167. css.properties.-webkit-mask-composite
168. css.properties.-webkit-mask-position-x
169. css.properties.-webkit-mask-position-y
170. css.properties.-webkit-mask-repeat-x
171. css.properties.-webkit-mask-repeat-y
172. css.properties.-webkit-mask-source-type
173. css.properties.-webkit-max-logical-height
174. css.properties.-webkit-max-logical-width
175. css.properties.-webkit-min-logical-height
176. css.properties.-webkit-min-logical-width
177. css.properties.-webkit-nbsp-mode
178. css.properties.-webkit-perspective-origin-x
179. css.properties.-webkit-perspective-origin-y
180. css.properties.-webkit-rtl-ordering
181. css.properties.-webkit-tap-highlight-color
182. css.properties.-webkit-text-combine
183. css.properties.-webkit-text-decoration-skip
184. css.properties.-webkit-text-decorations-in-effect
185. css.properties.-webkit-text-security
186. css.properties.-webkit-text-zoom
187. css.properties.-webkit-touch-callout
188. css.properties.-webkit-transform-origin-x
189. css.properties.-webkit-transform-origin-y
190. css.properties.-webkit-transform-origin-z
191. css.properties.-webkit-user-drag
192. css.properties.-webkit-user-modify
193. css.properties.caption-side.bottom-outside
194. css.properties.caption-side.left
195. css.properties.caption-side.right
196. css.properties.caption-side.top-outside
197. css.properties.flex-grow.less_than_zero_animate
198. css.properties.font-smooth
199. css.properties.mask-clip.border
200. css.properties.mask-clip.content
201. css.properties.mask-clip.padding
202. css.properties.mask-clip.text
203. css.properties.mask-origin.border
204. css.properties.mask-origin.content
205. css.properties.mask-origin.padding
206. css.properties.text-rendering.auto
207. css.properties.text-rendering.geometricPrecision
208. css.selectors.-moz-color-swatch
209. css.selectors.-moz-first-node
210. css.selectors.-moz-focus-inner
211. css.selectors.-moz-last-node
212. css.selectors.-moz-list-bullet
213. css.selectors.-moz-list-number
214. css.selectors.-moz-only-whitespace
215. css.selectors.-moz-progress-bar
216. css.selectors.-moz-range-progress
217. css.selectors.-moz-range-thumb
218. css.selectors.-moz-range-track
219. css.selectors.-moz-submit-invalid
220. css.selectors.-moz-window-inactive
221. css.selectors.-webkit-inner-spin-button
222. css.selectors.-webkit-meter-bar
223. css.selectors.-webkit-meter-even-less-good-value
224. css.selectors.-webkit-meter-inner-element
225. css.selectors.-webkit-meter-optimum-value
226. css.selectors.-webkit-meter-suboptimum-value
227. css.selectors.-webkit-progress-bar
228. css.selectors.-webkit-progress-inner-element
229. css.selectors.-webkit-progress-value
230. css.selectors.-webkit-resizer
231. css.selectors.-webkit-scrollbar
232. css.selectors.-webkit-scrollbar-button
233. css.selectors.-webkit-scrollbar-corner
234. css.selectors.-webkit-scrollbar-thumb
235. css.selectors.-webkit-scrollbar-track
236. css.selectors.-webkit-scrollbar-track-piece
237. css.selectors.-webkit-search-cancel-button
238. css.selectors.-webkit-search-results-button
239. css.selectors.hover.a_elements
240. css.selectors.hover.all_elements
241. html.elements.iframe.browsingtopics
242. html.elements.iframe.sandbox.allow-storage-access-by-user-activation
243. html.elements.input.type_password.insecure_login_handling
244. html.global_attributes.anchor
245. html.manifest.serviceworker
246. html.manifest.serviceworker.scope
247. html.manifest.serviceworker.src
248. html.manifest.serviceworker.use_cache
249. http.headers.Cache-Control.stale-if-error
250. http.headers.Cache-Control.stale-while-revalidate
251. http.headers.Content-Security-Policy.form-action.blocks_redirects
252. http.headers.Observe-Browsing-Topics
253. http.headers.Permissions-Policy.browsing-topics
254. http.headers.Sec-Browsing-Topics
255. http.headers.Sec-GPC
256. http.headers.Snapshot-Content-Location
257. http.headers.X-DNS-Prefetch-Control
258. http.headers.X-XSS-Protection
259. javascript.builtins.AggregateError.serializable_object
260. javascript.builtins.Error.Error.fileName_parameter
261. javascript.builtins.Error.Error.lineNumber_parameter
262. javascript.builtins.Error.cause.displayed_in_console
263. javascript.builtins.Error.columnNumber
264. javascript.builtins.Error.fileName
265. javascript.builtins.Error.lineNumber
266. javascript.builtins.Error.stack
267. javascript.builtins.Function.displayName
268. javascript.builtins.InternalError
269. javascript.builtins.InternalError.InternalError
270. javascript.grammar.trailing_commas.trailing_commas_in_dynamic_import
271. javascript.operators.import.options_parameter
272. mathml.attribute_values.named_space
273. mathml.attribute_values.nonzero_unitless_values
274. mathml.elements.menclose
275. mathml.elements.menclose.notation
276. mathml.elements.menclose.notation.actuarial
277. mathml.elements.menclose.notation.bottom
278. mathml.elements.menclose.notation.box
279. mathml.elements.menclose.notation.circle
280. mathml.elements.menclose.notation.downdiagonalstrike
281. mathml.elements.menclose.notation.horizontalstrike
282. mathml.elements.menclose.notation.left
283. mathml.elements.menclose.notation.longdiv
284. mathml.elements.menclose.notation.madruwb
285. mathml.elements.menclose.notation.phasorangle
286. mathml.elements.menclose.notation.right
287. mathml.elements.menclose.notation.roundedbox
288. mathml.elements.menclose.notation.top
289. mathml.elements.menclose.notation.updiagonalarrow
290. mathml.elements.menclose.notation.updiagonalstrike
291. mathml.elements.menclose.notation.verticalstrike
292. mathml.elements.mo.accent
293. mathml.elements.mpadded.relative_values
294. mathml.elements.mtable.align
295. mathml.elements.mtable.columnalign
296. mathml.elements.mtable.columnlines
297. mathml.elements.mtable.columnspacing
298. mathml.elements.mtable.frame
299. mathml.elements.mtable.framespacing
300. mathml.elements.mtable.rowalign
301. mathml.elements.mtable.rowlines
302. mathml.elements.mtable.rowspacing
303. mathml.elements.mtable.width
304. mathml.elements.mtd.columnalign
305. mathml.elements.mtd.rowalign
306. mathml.elements.mtr.columnalign
307. mathml.elements.mtr.rowalign
308. mathml.global_attributes.href
309. webassembly.api.Exception.Exception.options_parameter_traceStack
310. webassembly.api.Exception.stack

[ddbeck]

Abstractly, I think this is a step removed from computing a status: what feature would unspecified behavior be a part of?

More concretely, unspecified behavior wouldn't have a reportable status because it wouldn't be part of a web-features feature. And even if it were, how would we be able to review the status that would result, if what "should" happen is indeterminate?

Eventually getStatus() will actually assert this by checking whether a key is part of a feature or not, but this doesn't actually happen yet.

Pragmatically, I suppose that unspecified but interoperable behavior could be included in a feature, as it would be a de facto standard. But I suspect the exception would be easy to make, because it'd be very likely that a proposal exists to specify that behavior.

(And for unspecified single-engine behaviors, I suppose we could consider some kind of "unspecified" status to live alongside Baseline. We'll probably want to have some sort of deprecated or discouraged status as well, so developers can understand support in that context.)