diff --git a/server/dev-server.mjs b/server/dev-server.mjs
index f60e4e5..ca86d35 100644
--- a/server/dev-server.mjs
+++ b/server/dev-server.mjs
@@ -1443,8 +1443,8 @@ function buildLoginRedirectUrl(returnTo, { forceLogin = false } = {}) {
 }
 
 function buildOidcLogoutUrl(discovery, returnTo = "/", idToken = null) {
-  const endpoint = discovery.end_session_endpoint || new URL("/application/o/launcher/end-session/", config.issuer).toString();
-  const logoutUrl = new URL(endpoint);
+  const issuerUrl = new URL(discovery.issuer || config.issuer);
+  const logoutUrl = new URL("/if/flow/default-invalidation-flow/", issuerUrl.origin);
 
   logoutUrl.searchParams.set("client_id", config.clientId);
   logoutUrl.searchParams.set("post_logout_redirect_uri", buildLoggedOutRedirectUrl(returnTo));