[simonw]

Amusingly I just had Claude vibe code up a new tool and it has exactly the same bug! Safari only, you have to expand the "Document context" area to see it.

Here's that HTML file (frozen at the version with the bug): https://github.com/simonw/tools/blob/e7a23e8a1083ea99a5b3ef5...

It's hosted here, but I've added the overflow-x: hidden now so it's fixed: https://tools.simonwillison.net/openai-webrtc

The bug only shows up if you increase your browser font size - at default size there's no scrollbar.