chore(clerk-js): Prefer popup flow for .lp.dev origins (#6686)

Author: brkalow

.changeset/shy-places-grab.md

@@ -0,0 +1,5 @@
+---
+'@clerk/clerk-js': patch
+---
+
+Add `.lp.dev` to list of origins that prefer the popup SSO flow.

packages/clerk-js/src/ui/utils/__tests__/originPrefersPopup.spec.ts

@@ -105,6 +105,14 @@ describe('originPrefersPopup', () => {
         expect(originPrefersPopup()).toBe(true);
       });
 
+      it('should return true for .lp.dev domains', () => {
+        mockLocationOrigin('https://preview.lp.dev');
+        expect(originPrefersPopup()).toBe(true);
+
+        mockLocationOrigin('https://app.lp.dev');
+        expect(originPrefersPopup()).toBe(true);
+      });
+
       it('should handle HTTPS and HTTP protocols', () => {
         mockLocationOrigin('http://localhost.lovable.app');
         expect(originPrefersPopup()).toBe(true);

packages/clerk-js/src/ui/utils/originPrefersPopup.ts

@@ -7,6 +7,7 @@ const POPUP_PREFERRED_ORIGINS = [
   '.vusercontent.net',
   '.v0.dev',
   '.v0.app',
+  '.lp.dev',
 ];
 
 /**