mirror of
https://git.sr.ht/~seirdy/seirdy.one
synced 2024-11-30 15:22:09 +00:00
19 lines
1,014 B
Markdown
19 lines
1,014 B
Markdown
|
---
|
||
|
|
title: "Polygot XHTML5"
|
||
|
|
date: 2023-07-22T20:39:24-07:00
|
||
|
|
syndicatedCopies:
|
||
|
|
- title: 'The Fediverse'
|
||
|
|
url: 'https://pleroma.envs.net/notice/AXyQMNhrMjeGLBrmim'
|
||
|
|
---
|
||
|
|
|
||
|
|
Why is my site's markup polygot XHTML5? I have had to deal with some really awful user-agents:
|
||
|
|
|
||
|
|
- Bespoke markup parsers in RSS readers.
|
||
|
|
- Link previews in obscure messaging apps.
|
||
|
|
- A reader-mode bookmarklet-turned-browser-extension that hasn't been updated in twelve years.
|
||
|
|
- Various search engines trying to parse the page without using a compliant parser.
|
||
|
|
|
||
|
|
Most of my issues were solved by running my generated markup through both `xmllint` (XML syntax) and the Nu HTML Checker (HTML5). Optional elements tend to cause issues the most.
|
||
|
|
|
||
|
|
Overly-aggressive validation tends to spot latent bugs. Even if something is valid without an optional closing tag, I may have meant to include one in my templates. If that becomes an issue when I change something else later, it'll be hard to track down the bug when it passes more lax validation.
|