I am trying to set the SameSite attribute in javascipt, this is my code:

document.cookie = `refresh=${resp.refresh};max-age=86400;SameSite=Lax;domain=mykerkadmin.com;`
document.cookie = `access=${resp.access};max-age=57600;SameSite=Lax;domain=mykerkadmin.com;`

I used the same syntax as the following Issue

But my cookies still show the following:

What can I do differently?