Some (or all?) declarativeNetRequest functions are not working

In https://orionfeedback.org/d/8053-extensions-support-for-declarativenetrequest-redirects and in the release notes for 0.99.131, there should be support in Orion desktop for the declarativeNetRequest web extension API. However, I can't get several parts of it to work in a test extension.

STR: clone the repo, install it in Orion and Chrome
In chrome, with the extension enabled, if you go to https://help.kagi.com/orion/browser-extensions/macos-extensions.html#supported-webextensions-apis you can see that the request for https://kagi-sidekick-ui.pages.dev/chat is redirected to https://kagi-sidekick-ui.pages.dev/chat?testdnr=true and the X-DNR-Test response header is set.
In orion, neither of those things happen

I expect that static and dynamic declarativeNetRequest rules work properly, the functionality should match what currently happens in Chrome.

0.99.132-beta

Sequoia (15)

emerson responseHeaders are not currently supported, as the implementation derived from Safari due to WebKit limitations.

The redirection is working fine for us on Beta 132. Can you please share a recorded video to help us better understand the issue?