Simon Willison’s Weblog

Different browsers different DOMs

21st November 2002

Hixie has put together a fascinating article describing how the Mozilla, Opera 7 beta and IE6 DOMs deal with incorrectly nested HTML tags. Internet Explorer goes as far as creating a malformed tree just to represent badly formed HTML!

Posted 21st November 2002 at 11:06 pm · Follow me on Mastodon, Bluesky, Twitter or subscribe to my newsletter

More recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

This is Different browsers different DOMs by Simon Willison, posted on 21st November 2002.

Next: Search engines don't care!

Previous: Syndicated further reading recommendations

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe

Previously hosted at http://simon.incutio.com/archive/2002/11/21/differentBrowsersDifferentDoms