"Handling media support issues in web content" page is unfinished

### MDN URL

https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Support_issues

### What specific section or headline is this issue about?

Specifying multiple sources, Checking compatibility in JavaScript, Detecting playback errors, Adapting presentation with CSS, Memory management

### What information was incorrect, unhelpful, or incomplete?

The information was incomplete

### What did you expect to see?

content

### Do you have any supporting links, references, or citations?

_No response_

### Do you have anything more you want to share?

_No response_

### MDN metadata

Page report details

* Folder: `en-us/web/media/formats/support_issues`
* MDN URL: https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Support_issues
* GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/media/formats/support_issues/index.md
* Last commit: https://github.com/mdn/content/commit/6bff95b8adb7ecb18660320721433525a26360d1
* Document last modified: 2023-02-24T06:17:52.000Z