cleanup

apps/login/src/app/(login)/idp/page.tsx

@@ -24,10 +24,6 @@ export default async function Page(props: {
 
   const identityProviders = await getIdentityProviders(organization);
 
-  const host = process.env.VERCEL_URL
-    ? `https://${process.env.VERCEL_URL}`
-    : "http://localhost:3000";
-
   const branding = await getBrandingSettings(organization);
 
   return (
@@ -38,7 +34,6 @@ export default async function Page(props: {
 
         {identityProviders && (
           <SignInWithIdp
-            host={host}
             identityProviders={identityProviders}
             authRequestId={authRequestId}
             organization={organization}

apps/login/src/components/sign-in-with-idp.tsx

@@ -6,7 +6,6 @@ import {
   IdentityProvider,
   IdentityProviderType,
 } from "@zitadel/proto/zitadel/settings/v2/login_settings_pb";
-import { headers } from "next/headers";
 import { useRouter } from "next/navigation";
 import { ReactNode, useState } from "react";
 import { Alert } from "./alert";
@@ -52,14 +51,10 @@ export function SignInWithIdp({
       params.set("organization", organization);
     }
 
-    const host = (await headers()).get("host");
-
     const response = await startIDPFlow({
       idpId,
-      successUrl:
-        `${host}/idp/${provider}/success?` + new URLSearchParams(params),
-      failureUrl:
-        `${host}/idp/${provider}/failure?` + new URLSearchParams(params),
+      successUrl: `/idp/${provider}/success?` + new URLSearchParams(params),
+      failureUrl: `/idp/${provider}/failure?` + new URLSearchParams(params),
     })
       .catch(() => {
         setError("Could not start IDP flow");

apps/login/src/lib/server/idp.ts

@@ -1,6 +1,7 @@
 "use server";
 
 import { startIdentityProviderFlow } from "@/lib/zitadel";
+import { headers } from "next/headers";
 
 export type StartIDPFlowCommand = {
   idpId: string;
@@ -9,11 +10,13 @@ export type StartIDPFlowCommand = {
 };
 
 export async function startIDPFlow(command: StartIDPFlowCommand) {
+  const host = (await headers()).get("host");
+
   return startIdentityProviderFlow({
     idpId: command.idpId,
     urls: {
-      successUrl: command.successUrl,
-      failureUrl: command.failureUrl,
+      successUrl: `${host}${command.successUrl}`,
+      failureUrl: `${host}${command.failureUrl}`,
     },
   }).then((response) => {
     if (