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Cookies: Setting a cookie domain

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The domain parameter specifies which domain (and subdomains) the cookie applies to.

document.cookie = 'name=Flavio; domain=mysite.com;'

If not set, it defaults to the current host (for example, on subdomain.mydomain.com it defaults to that full hostname). Cookies set with a domain are also sent to its subdomains.

Lessons in this unit:

0: Introduction
1: Setting cookies
2: Setting a cookie expiration date
3: Setting a cookie path
4: ▶︎ Setting a cookie domain
5: Cookies security
6: Updating a cookie
7: Deleting a cookie
8: Accessing the value of a cookie
9: Checking if a cookie exists
10: Inspecting cookies
11: Cookie not being set in Safari