Invalid Redirect: must use a domain that is a valid

LexandroPlays · May 29, 2025, 6:47pm

Hello n8n Support Team,

I am encountering an issue while setting up Google OAuth2 credentials for integration with n8n. When I try to register the redirect URI generated by n8n (https://nedibcukang.beget.app/rest/oauth2-credential/callback), Google returns the following error:

Invalid Redirect: must use a domain that is a valid top private domain

I have verified that my domain is accessible and uses HTTPS, but Google still does not accept it as a valid redirect URI. The URI is generated automatically by n8n.

Best regards,
Alex

Grot · May 29, 2025, 7:00pm

I found the issue. So there is a public suffix list which google checks. Your domain is there on line 12299. So you need to get it removed ore use a new domain to get it to work.

github.com/publicsuffix/list

public_suffix_list.dat

main

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.

// Please pull this list from, and only from https://publicsuffix.org/list/public_suffix_list.dat,
// rather than any other VCS sites. Pulling from any other URL is not guaranteed to be supported.

// Instructions on pulling and using this list can be found at https://publicsuffix.org/list/.

// ===BEGIN ICANN DOMAINS===

// ac : http://nic.ac/rules.htm
ac
com.ac
edu.ac
gov.ac
mil.ac
net.ac
org.ac

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Boris_Marinov · June 22, 2025, 7:05pm

Hi! Were you able to solve the problem? If so, how? The same problem with the domain .app