Setting Cookie using Serverless Function don't work

[SaltyKaren]

I created an endpoint to set Cookies using Serverless Function. I found this documentation regarding it https://developers.hubspot.com/docs/cms/data/serverless-functions/reference#set-cookies-from-your-en... but it don't seem to work. I keep getting an error

I have tried setting the domain to be same as the current page and also tried removing it but still the same error.

[Jaycee_Lewis]

Hi, @SaltyKaren 👋 Thanks for your question. I'd like to invite some of our community experts to the conversation – hey @Teun @JBeatty @albertsg, do you have any experience with the challenge @SaltyKaren is describing?

Thank you for taking a look! — Jaycee