XRSystem: Single page for devicechange event

[Elchi3]

Summary

Have one page for the device change event of XRSystem. Redirect the ondevicechange event handler page to it.

Motivation

De-duplicated event pages.

[github-actions]

Preview URLs

• https://pr10474.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/XRSystem/devicechange_event
• https://pr10474.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/XRSystem

Flaws

Note! 1 document with no flaws that don't need to be listed. 🎉

URL: /en-US/docs/Web/API/XRSystem
Title: XRSystem
on GitHub
Flaw count: 1

• bad_bcd_links:
  • no explanation!

External URLs

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

No new external URLs

---

URL: /en-US/docs/Web/API/XRSystem/devicechange_event
Title: XRSystem: devicechange event
on GitHub

No new external URLs

(this comment was updated 2021-11-18 13:51:03.609346)

[wbamberg]

FWIW I'm not very keen on this way of representing the event type. Is this an an H2 section that's only ever going to contain one word? I think I liked the table we had before better. Similarly, if we want to represent "cancelable" in a consistent way, isn't it better in a table than in prose?

[Elchi3]

I was thinking of "Event type" analog to "Return value" in method pages, but maybe it should be an h3 under Syntax then?
I'm not yet sure about cancelable and if it is all that important. So far it has always been "no".

[Elchi3]

I've started https://github.com/mdn/content/discussions/10544 so we can discuss the new event page type.

[Elchi3]

I've added a commit that experiments with no syntax section but h3 headings for Trigger, Event type and Use cases.