From d3ebdd45d9a0c784f4d3847bd2c01843e6b78c32 Mon Sep 17 00:00:00 2001
From: Parijat bhatt <bh.parijat@gmail.com>
Date: Thu, 4 May 2023 13:26:36 -0700
Subject: [PATCH 1/2] removed assertion to check for port numbers in authdomain

---
 packages/auth/src/core/auth/register.ts | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/packages/auth/src/core/auth/register.ts b/packages/auth/src/core/auth/register.ts
index 1d779421c89..c203d682d00 100644
--- a/packages/auth/src/core/auth/register.ts
+++ b/packages/auth/src/core/auth/register.ts
@@ -72,10 +72,7 @@ export function registerAuth(clientPlatform: ClientPlatform): void {
           AuthErrorCode.INVALID_API_KEY,
           { appName: app.name }
         );
-        // Auth domain is optional if IdP sign in isn't being used
-        _assert(!authDomain?.includes(':'), AuthErrorCode.ARGUMENT_ERROR, {
-          appName: app.name
-        });
+
         const config: ConfigInternal = {
           apiKey,
           authDomain,

From d8b4450d362802784d3b8427e7dfb85cc185f7e9 Mon Sep 17 00:00:00 2001
From: Parijat bhatt <bh.parijat@gmail.com>
Date: Thu, 4 May 2023 14:05:10 -0700
Subject: [PATCH 2/2] adding changeset

---
 .changeset/small-chairs-explain.md             | 5 +++++
 packages/auth/src/core/auth/initialize.test.ts | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/small-chairs-explain.md

diff --git a/.changeset/small-chairs-explain.md b/.changeset/small-chairs-explain.md
new file mode 100644
index 00000000000..88f41ce72a6
--- /dev/null
+++ b/.changeset/small-chairs-explain.md
@@ -0,0 +1,5 @@
+---
+'@firebase/auth': patch
+---
+
+Allow port numbers in authDomain
diff --git a/packages/auth/src/core/auth/initialize.test.ts b/packages/auth/src/core/auth/initialize.test.ts
index efdec7f1ef1..5ca5fa6eb52 100644
--- a/packages/auth/src/core/auth/initialize.test.ts
+++ b/packages/auth/src/core/auth/initialize.test.ts
@@ -140,7 +140,7 @@ describe('core/auth/initialize', () => {
     fakeApp = initializeApp({
       apiKey: 'fake-key',
       appId: 'fake-app-id',
-      authDomain: 'fake-auth-domain'
+      authDomain: 'fake-auth-domain:9999'
     });
   });
 
@@ -165,7 +165,7 @@ describe('core/auth/initialize', () => {
         apiHost: 'identitytoolkit.googleapis.com',
         apiKey: 'fake-key',
         apiScheme: 'https',
-        authDomain: 'fake-auth-domain',
+        authDomain: 'fake-auth-domain:9999',
         clientPlatform: expectedClientPlatform,
         sdkClientVersion: expectedSdkClientVersion,
         tokenApiHost: 'securetoken.googleapis.com'