fix: Don't set cookie domain when not using multiple subdomains (#1145)

* fix: Don't set cookie domain when not using multiple subdomains

* wip logging domain

* wip logging domain

* wip logging domain

* wip logging domain

* Revert "wip logging domain"

This reverts commit 325907e74962179e02cee0b1df364a3aedbe62e3.

* Revert "wip logging domain"

This reverts commit 6ee095a49e9c18999a20d5379234323d49d5e6c8.

* Revert "wip logging domain"

This reverts commit 813d8eb960cdf4dd6db4795739df3adf895600e2.

* Revert "wip logging domain"

This reverts commit f1ca81927626bbd0d46c1963510d115a003176d8.

* Remove SUBDOMAINS_ENABLED from documented env variables, no-one self hosting should need this – it just adds confusion to those looking to host on a single subdomain
fix: Account for server/client process.env parsing

Co-authored-by: Nan Yu <nanyu@Nans-MBP-2.lan>
Co-authored-by: Nan Yu <nan@getoutline.com>

shared/utils/domains.js

@@ -42,6 +42,14 @@ export function parseDomain(url: string): ?Domain {
   return null;
 }
 
+export function getCookieDomain(domain: string) {
+  // TODO: All the process.env parsing needs centralizing
+  return process.env.SUBDOMAINS_ENABLED === 'true' ||
+    process.env.SUBDOMAINS_ENABLED === true
+    ? stripSubdomain(domain)
+    : domain;
+}
+
 export function stripSubdomain(hostname: string) {
   const parsed = parseDomain(hostname);
   if (!parsed) return hostname;