How to set a set cookie in the management screen?

It’s not possible to manually set it. The team had this to say:

We explicitly set it to none when saving cookies, at least for HTTPS. If no HTTPS, we use the browser default by not specifying a value at all.https://github.com/auth0/auth0-spa-js/blob/0c6166c0f1dd7c8405b7231d0074c1eb0d8a164f/src/storage.ts#L36

If they’re testing on localhost , it could be (I’m assuming Chrome) defaulting to lax if the SameSite attribute is not specified. See this Chrome feature which started rolling out from July 2020. So it could be Chrome just reporting that default.

When SameSite was implemented in this SDK, we decided at the time to specify none when running on HTTPS, and not specify anything at all (inherit browser defaults) when not running on HTTPS.

Hope that helps.