Weed out information about HTML attributes from HTMLImageElement properties

[Josh-Cena]

Our HTML DOM docs are supposed to be thin because the HTML docs are the source of truth for everything about these attributes. The IDL merely reflects the attributes but adds no additional semantics.

• Fix Image request fired as soon as src is set #26560
• Fix HTMLImageElement.srcset: sizes attribute doesn't need to be present #27291
• Fix Whitespace is not insignificant in HTMLImageElement.srcset #35492
• Fix HTMLImageElement.alt example contains no JS #38897

[github-actions]

Preview URLs (35 pages)

• /en-US/docs/Learn_web_development/Howto/Design_and_accessibility/HTML_features_for_accessibility
• /en-US/docs/Web/API/HTMLImageElement/align
• /en-US/docs/Web/API/HTMLImageElement/alt
• /en-US/docs/Web/API/HTMLImageElement/attributionSrc
• /en-US/docs/Web/API/HTMLImageElement/border
• /en-US/docs/Web/API/HTMLImageElement/complete
• /en-US/docs/Web/API/HTMLImageElement/crossOrigin
• /en-US/docs/Web/API/HTMLImageElement/currentSrc
• /en-US/docs/Web/API/HTMLImageElement/decode
• /en-US/docs/Web/API/HTMLImageElement/decoding
• /en-US/docs/Web/API/HTMLImageElement/fetchPriority
• /en-US/docs/Web/API/HTMLImageElement/height
• /en-US/docs/Web/API/HTMLImageElement/hspace
• /en-US/docs/Web/API/HTMLImageElement/isMap
• /en-US/docs/Web/API/HTMLImageElement/loading
• /en-US/docs/Web/API/HTMLImageElement/longDesc
• /en-US/docs/Web/API/HTMLImageElement/name
• /en-US/docs/Web/API/HTMLImageElement/naturalHeight
• /en-US/docs/Web/API/HTMLImageElement/naturalWidth
• /en-US/docs/Web/API/HTMLImageElement/referrerPolicy
• /en-US/docs/Web/API/HTMLImageElement/sizes
• /en-US/docs/Web/API/HTMLImageElement/src
• /en-US/docs/Web/API/HTMLImageElement/srcset
• /en-US/docs/Web/API/HTMLImageElement/useMap
• /en-US/docs/Web/API/HTMLImageElement/vspace
• /en-US/docs/Web/API/HTMLImageElement/width
• /en-US/docs/Web/API/HTMLImageElement/x
• /en-US/docs/Web/API/HTMLImageElement/y
• /en-US/docs/Web/API/HTMLLinkElement/fetchPriority
• /en-US/docs/Web/API/HTMLScriptElement/fetchPriority
• /en-US/docs/Web/HTML/Reference/Attributes/fetchpriority
• /en-US/docs/Web/HTML/Reference/Elements/img
• /en-US/docs/Web/HTML/Reference/Elements/link
• /en-US/docs/Web/HTML/Reference/Elements/script
• /en-US/docs/Web/SVG/Reference/Attribute/fetchpriority

External URLs (4)

URL: /en-US/docs/Web/API/HTMLImageElement/isMap
Title: HTMLImageElement: isMap property

• https://en.wikipedia.org/wiki/Image_map (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/API/HTMLImageElement/longDesc
Title: HTMLImageElement: longDesc property

• https://html.spec.whatwg.org/multipage/obsolete.html (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/API/HTMLImageElement/naturalHeight
Title: HTMLImageElement: naturalHeight property

• https://crbug.com/1187043 (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/API/HTMLImageElement/naturalWidth
Title: HTMLImageElement: naturalWidth property

• https://crbug.com/1187043 (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2025-09-12 22:27:56)

[github-actions]

This pull request has merge conflicts that must be resolved before it can be merged.