From c9075b3dba8b2124a3d236bd88949ab440fe04d7 Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Wed, 15 May 2024 11:59:42 +0100
Subject: [PATCH] Only pass id_server if we had one to begin with (#4200)

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>
---
 src/interactive-auth.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/interactive-auth.ts b/src/interactive-auth.ts
index 3e5b8d47e..8b6a686d8 100644
--- a/src/interactive-auth.ts
+++ b/src/interactive-auth.ts
@@ -343,8 +343,10 @@ export class InteractiveAuth<T> {
                     sid: this.emailSid,
                     client_secret: this.clientSecret,
                 };
-                const idServerParsedUrl = new URL(this.matrixClient.getIdentityServerUrl()!);
-                creds.id_server = idServerParsedUrl.host;
+                const isUrl = this.matrixClient.getIdentityServerUrl();
+                if (isUrl) {
+                    creds.id_server = new URL(isUrl).host;
+                }
                 authDict = {
                     type: EMAIL_STAGE_TYPE,
                     // TODO: Remove `threepid_creds` once servers support proper UIA