Cross sub domain session sharing
For anyone who plans on implementing cross sub domain cookies session save yourself the stress.
1. Setting cookies secure to "none" would not work on your localhost because it requires https except you manage to get wildcard ssl certificates for localhost
2 . If you want to test locally with the least friction in my experience just setup cloud flare tunnels i suggest getting a dedicated domain for dev. This means you now longer going to be using localhost instead yourdomain.com
3. don't forget to provide the wildcard .yourdomain.com in the trusted origins config i.e better auth server instance
https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/
Here is the config I used to achieve this
`advanced: { cookiePrefix: "yourprefix", crossSubDomainCookies: { enabled: true, domain: .yourdomain.com, }, }, trustedOrigins: [https://.yourdomain.com], `
1. Setting cookies secure to "none" would not work on your localhost because it requires https except you manage to get wildcard ssl certificates for localhost
2 . If you want to test locally with the least friction in my experience just setup cloud flare tunnels i suggest getting a dedicated domain for dev. This means you now longer going to be using localhost instead yourdomain.com
3. don't forget to provide the wildcard .yourdomain.com in the trusted origins config i.e better auth server instance
https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/
Here is the config I used to achieve this
`advanced: { cookiePrefix: "yourprefix", crossSubDomainCookies: { enabled: true, domain: .yourdomain.com, }, }, trustedOrigins: [https://.yourdomain.com], `
Cloudflare Docs
Cloudflare Tunnel provides you with a secure way to connect your resources to Cloudflare without a publicly routable IP address. With Tunnel, you do not send traffic to an external IP — instead, a lightweight daemon in your infrastructure (cloudflared) creates outbound-only connections to Cloudflare's global network. Cloudflare Tunnel can conn...
