[Markdown] [Web/API] Raft of randomness

[wbamberg]

Part of #7898 .

This PR fixes a raft of little issues that the converter didn't like the look of.

[github-actions]

Preview URLs

• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/BlobBuilder
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/CanvasRenderingContext2D/drawImage
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Constraint_validation
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/DOMMatrixReadOnly/translate
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Element/computedStyleMap
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Element/id
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/FileList
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/HTMLElement/tabIndex
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/HTMLImageElement/useMap
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/IDBRequest/error
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Navigator/Online_and_offline_events
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/SpeechRecognitionAlternative/confidence
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/SpeechRecognitionAlternative/transcript
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/WebRTC_API/Build_a_phone_with_peerjs
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Web_Authentication_API
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Web_Storage_API
• https://pr8508.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Window/open/Privileged_features

Flaws

Note! 12 documents with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/API/Constraint_validation
Title: Constraint validation API
on GitHub
Flaw count: 3

• macros:
  • /en-US/docs/Web/API/ValidityState/customError does not exist
  • /en-US/docs/Web/API/ValidityState/valid does not exist
  • /en-US/docs/Web/API/ValidityState/valueMissing does not exist

---

URL: /en-US/docs/Web/API/BlobBuilder
Title: BlobBuilder
on GitHub
Flaw count: 5

• broken_links:
  • No need for the pathname in anchor links if it's the same page
  • No need for the pathname in anchor links if it's the same page
  • No need for the pathname in anchor links if it's the same page
  • No need for the pathname in anchor links if it's the same page
  • No need for the pathname in anchor links if it's the same page

---

URL: /en-US/docs/Web/API/Navigator/Online_and_offline_events
Title: Online and offline events
on GitHub
Flaw count: 9

• broken_links:
  • Is currently http:// but can become https://
  • Can't resolve /en-US/docs/DOM/window.navigator.onLine
  • Can't resolve /en-US/Firefox/Releases/41#Miscellaneous
  • Can't resolve /en-US/docs/Firefox_3_for_developers
  • Can't resolve /en-US/docs/Web/API/document.ononline
  • and 4 more flaws omitted

---

URL: /en-US/docs/Web/API/FileList
Title: FileList
on GitHub
Flaw count: 2

• bad_bcd_links:
  • no explanation!
  • no explanation!

---

URL: /en-US/docs/Web/API/Window/open/Privileged_features
Title: Privileged features
on GitHub
Flaw count: 4

• broken_links:
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://
  • Is currently http:// but can become https://

External URLs

URL: /en-US/docs/Web/API/Element/id
Title: Element.id
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Element/computedStyleMap
Title: Element.computedStyleMap()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/SpeechRecognitionAlternative/confidence
Title: SpeechRecognitionAlternative.confidence
on GitHub

No external URLs

---

URL: /en-US/docs/Web/API/SpeechRecognitionAlternative/transcript
Title: SpeechRecognitionAlternative.transcript
on GitHub

No external URLs

---

URL: /en-US/docs/Web/API/Constraint_validation
Title: Constraint validation API
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/CanvasRenderingContext2D/drawImage
Title: CanvasRenderingContext2D.drawImage()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Web_Storage_API
Title: Web Storage API
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/DOMMatrixReadOnly/translate
Title: DOMMatrixReadOnly.translate()
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/BlobBuilder
Title: BlobBuilder
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/HTMLElement/tabIndex
Title: HTMLElement.tabIndex
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Navigator/Online_and_offline_events
Title: Online and offline events
on GitHub

• https://www.whatwg.org/specs/web-apps/current-work/ (4 times) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Web/API/WebRTC_API/Build_a_phone_with_peerjs
Title: Building an Internet-Connected Phone with PeerJS
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/FileList
Title: FileList
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Web_Authentication_API
Title: Web Authentication API
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/Window/open/Privileged_features
Title: Privileged features
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/IDBRequest/error
Title: IDBRequest.error
on GitHub

No new external URLs

---

URL: /en-US/docs/Web/API/HTMLImageElement/useMap
Title: HTMLImageElement.useMap
on GitHub

No external URLs