Netlify redirects causing cross origin errors in Tina Visual Editor

When logging into tina on https://padp.staging.performant.studio/admin/, specifically with the visual editor enabled, we get a cross-origin error in the console, many times per second, and the visual editor fails to load.

https://github.com/user-attachments/assets/598a4be8-5fa7-4196-b5ef-2b78c5e04b44