mirror of
https://github.com/supabase/supabase.git
synced 2026-10-05 17:35:10 +03:00
Sean Oliver
273102323d
## Problem GitHub OAuth redirects and Google SSO set the browser's Referer header to their domain when redirecting back to supabase.com. Our attribution pipeline treats these as genuine referral traffic, inflating the `github` channel by ~20K orgs/week. The internal referrer fix (GROWTH-647) surfaced this by reducing `unknown-internal` — it didn't cause the issue, it revealed OAuth noise that was previously hidden. ## What happened When users sign in with GitHub, the browser sends `Referer: https://github.com/`. GitHub's login pages use `origin-when-cross-origin` Referrer-Policy, which strips the path. So OAuth redirects arrive as bare `github.com/` — indistinguishable from a direct visit to github.com. Meanwhile, genuine GitHub referrals from repos/READMEs always include the full path because those pages use `no-referrer-when-downgrade`. We validated against `mart_marketing_organization_attribution`: 98.5% of GitHub-attributed orgs have bare `github.com/` as the referrer. Only ~250/week have specific paths (genuine referrals). ## Changes - Added `isOAuthRedirectReferrer()` to `first-referrer-cookie.ts` — identifies auth provider redirects: - `accounts.google.com` blocked entirely (dedicated SSO subdomain) - Bare `github.com/` blocked (OAuth redirect signature) - `github.com/<specific-path>` preserved (genuine repo/README referrals) - Wired into `shouldRefreshCookie()` so OAuth referrers never get stamped into cookies - Wired into `handlePageTelemetry()` referrer overrides as defense-in-depth - 17 new tests covering all OAuth patterns and edge cases ## Testing All 52 tests pass. New tests cover Google SSO (bare + with path), GitHub bare domain (with/without trailing slash), genuine GitHub referrals (repo, README, discussion, blob), explicit OAuth path, non-OAuth domains, empty/malformed URLs. Verified TDD — tests failed red before implementation, green after. Companion dbt PR in data-engineering handles historical data. GROWTH-732
Supabase
Supabase is the Postgres development platform. We're building the features of Firebase using enterprise-grade open source tools.
- Hosted Postgres Database. Docs
- Authentication and Authorization. Docs
- Auto-generated APIs.
- Functions.
- File Storage. Docs
- AI + Vector/Embeddings Toolkit. Docs
- Dashboard
Watch "releases" of this repo to get notified of major updates.
Documentation
For full documentation, visit supabase.com/docs
To see how to Contribute, visit Getting Started
Community & Support
- Community Forum. Best for: help with building, discussion about database best practices.
- GitHub Issues. Best for: bugs and errors you encounter using Supabase.
- Email Support. Best for: problems with your database or infrastructure.
- Discord. Best for: sharing your applications and hanging out with the community.
How it works
Supabase is a combination of open source tools. We’re building the features of Firebase using enterprise-grade, open source products. If the tools and communities exist, with an MIT, Apache 2, or equivalent open license, we will use and support that tool. If the tool doesn't exist, we build and open source it ourselves. Supabase is not a 1-to-1 mapping of Firebase. Our aim is to give developers a Firebase-like developer experience using open source tools.
Architecture
Supabase is a hosted platform. You can sign up and start using Supabase without installing anything. You can also self-host and develop locally.
- Postgres is an object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
- Realtime is an Elixir server that allows you to listen to PostgreSQL inserts, updates, and deletes using websockets. Realtime polls Postgres' built-in replication functionality for database changes, converts changes to JSON, then broadcasts the JSON over websockets to authorized clients.
- PostgREST is a web server that turns your PostgreSQL database directly into a RESTful API.
- GoTrue is a JWT-based authentication API that simplifies user sign-ups, logins, and session management in your applications.
- Storage a RESTful API for managing files in S3, with Postgres handling permissions.
- pg_graphql a PostgreSQL extension that exposes a GraphQL API.
- postgres-meta is a RESTful API for managing your Postgres, allowing you to fetch tables, add roles, and run queries, etc.
- Kong is a cloud-native API gateway.
Client libraries
Our approach for client libraries is modular. Each sub-library is a standalone implementation for a single external system. This is one of the ways we support existing tools.
| Language | Client | Feature-Clients (bundled in Supabase client) | ||||
|---|---|---|---|---|---|---|
| Supabase | PostgREST | GoTrue | Realtime | Storage | Functions | |
| ⚡️ Official ⚡️ | ||||||
| JavaScript (TypeScript) | supabase-js | postgrest-js | auth-js | realtime-js | storage-js | functions-js |
| Flutter | supabase-flutter | postgrest-dart | gotrue-dart | realtime-dart | storage-dart | functions-dart |
| Swift | supabase-swift | postgrest-swift | auth-swift | realtime-swift | storage-swift | functions-swift |
| Python | supabase-py | postgrest-py | gotrue-py | realtime-py | storage-py | functions-py |
| 💚 Community 💚 | ||||||
| C# | supabase-csharp | postgrest-csharp | gotrue-csharp | realtime-csharp | storage-csharp | functions-csharp |
| Go | - | postgrest-go | gotrue-go | - | storage-go | functions-go |
| Java | - | - | gotrue-java | - | storage-java | - |
| Kotlin | supabase-kt | postgrest-kt | auth-kt | realtime-kt | storage-kt | functions-kt |
| Ruby | supabase-rb | postgrest-rb | - | - | - | - |
| Rust | - | postgrest-rs | - | - | - | - |
| Godot Engine (GDScript) | supabase-gdscript | - | - | - | - | - |
Badges
[](https://supabase.com)
<a href="https://supabase.com">
<img
width="168"
height="30"
src="https://supabase.com/badge-made-with-supabase.svg"
alt="Made with Supabase"
/>
</a>
[](https://supabase.com)
<a href="https://supabase.com">
<img
width="168"
height="30"
src="https://supabase.com/badge-made-with-supabase-dark.svg"
alt="Made with Supabase"
/>
</a>
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