From eff72f5d8da63542e4786c700596d0b31cfbe728 Mon Sep 17 00:00:00 2001
From: ChrisCanin <chris@clerk.dev>
Date: Thu, 19 Mar 2026 09:39:57 -0700
Subject: [PATCH 1/2] fix(expo): dismiss browser after SSO/OAuth flow to
 prevent stuck sessions on re-login

---
 .changeset/fix-sso-browser-dismissal.md |  5 +++++
 packages/expo/src/hooks/useOAuth.ts     | 16 ++++++++++------
 packages/expo/src/hooks/useSSO.ts       | 19 ++++++++++++++-----
 3 files changed, 29 insertions(+), 11 deletions(-)
 create mode 100644 .changeset/fix-sso-browser-dismissal.md

diff --git a/.changeset/fix-sso-browser-dismissal.md b/.changeset/fix-sso-browser-dismissal.md
new file mode 100644
index 00000000000..f29d7ed67c8
--- /dev/null
+++ b/.changeset/fix-sso-browser-dismissal.md
@@ -0,0 +1,5 @@
+---
+'@clerk/expo': patch
+---
+
+Fix SSO/OAuth browser not being dismissed after authentication completes. On some platforms the in-app browser would remain open in the background after a successful flow, causing subsequent sign-in attempts to fail or appear frozen. `WebBrowser.dismissBrowser()` is now called unconditionally after `openAuthSessionAsync` resolves in both `useSSO` and `useOAuth`.
diff --git a/packages/expo/src/hooks/useOAuth.ts b/packages/expo/src/hooks/useOAuth.ts
index 80487ecf8ad..2ac5000bec9 100644
--- a/packages/expo/src/hooks/useOAuth.ts
+++ b/packages/expo/src/hooks/useOAuth.ts
@@ -77,13 +77,17 @@ export function useOAuth(useOAuthParams: UseOAuthFlowParams) {
 
     const { externalVerificationRedirectURL } = signIn.firstFactorVerification;
 
-    const authSessionResult = await WebBrowserModule.openAuthSessionAsync(
-      // @ts-ignore
-      externalVerificationRedirectURL.toString(),
-      oauthRedirectUrl,
-    );
+    let authSessionResult: WebBrowser.WebBrowserAuthSessionResult;
+    try {
+      authSessionResult = await WebBrowserModule.openAuthSessionAsync(
+        // @ts-ignore
+        externalVerificationRedirectURL.toString(),
+        oauthRedirectUrl,
+      );
+    } finally {
+      WebBrowserModule.dismissBrowser();
+    }
 
-    // @ts-expect-error
     const { type, url } = authSessionResult || {};
 
     // TODO: Check all the possible AuthSession results
diff --git a/packages/expo/src/hooks/useSSO.ts b/packages/expo/src/hooks/useSSO.ts
index 7dff8a208a2..d138324b653 100644
--- a/packages/expo/src/hooks/useSSO.ts
+++ b/packages/expo/src/hooks/useSSO.ts
@@ -86,11 +86,20 @@ export function useSSO() {
       return errorThrower.throw('Missing external verification redirect URL for SSO flow');
     }
 
-    const authSessionResult = await WebBrowserModule.openAuthSessionAsync(
-      externalVerificationRedirectURL.toString(),
-      redirectUrl,
-      authSessionOptions,
-    );
+    let authSessionResult: WebBrowser.WebBrowserAuthSessionResult;
+    try {
+      authSessionResult = await WebBrowserModule.openAuthSessionAsync(
+        externalVerificationRedirectURL.toString(),
+        redirectUrl,
+        authSessionOptions,
+      );
+    } finally {
+      // Ensure the browser is always dismissed after the auth session completes or fails.
+      // Without this, the browser can remain open in the background on some platforms,
+      // causing subsequent SSO attempts to fail or the browser to appear frozen.
+      WebBrowserModule.dismissBrowser();
+    }
+
     if (authSessionResult.type !== 'success' || !authSessionResult.url) {
       return {
         createdSessionId: null,

From a0943451bdb7492c7441fa5fc122e559f752079f Mon Sep 17 00:00:00 2001
From: ChrisCanin <chris@clerk.dev>
Date: Wed, 25 Mar 2026 11:05:14 -0700
Subject: [PATCH 2/2] fix(expo): fix TypeScript error in useOAuth auth session
 result handling

Access authSessionResult.type and authSessionResult.url directly with
proper discriminated union narrowing instead of destructuring, matching
the pattern used in useSSO.ts.
---
 packages/expo/src/hooks/useOAuth.ts | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/packages/expo/src/hooks/useOAuth.ts b/packages/expo/src/hooks/useOAuth.ts
index 2ac5000bec9..ec2107c0284 100644
--- a/packages/expo/src/hooks/useOAuth.ts
+++ b/packages/expo/src/hooks/useOAuth.ts
@@ -88,11 +88,9 @@ export function useOAuth(useOAuthParams: UseOAuthFlowParams) {
       WebBrowserModule.dismissBrowser();
     }
 
-    const { type, url } = authSessionResult || {};
-
     // TODO: Check all the possible AuthSession results
     // https://docs.expo.dev/versions/latest/sdk/auth-session/#returns-7
-    if (type !== 'success') {
+    if (authSessionResult.type !== 'success' || !authSessionResult.url) {
       return {
         authSessionResult,
         createdSessionId: '',
@@ -102,7 +100,7 @@ export function useOAuth(useOAuthParams: UseOAuthFlowParams) {
       };
     }
 
-    const params = new URL(url).searchParams;
+    const params = new URL(authSessionResult.url).searchParams;
 
     const rotatingTokenNonce = params.get('rotating_token_nonce') || '';
     await signIn.reload({ rotatingTokenNonce });