HTTP 405 Error on ACS URL when configuring SAML SSO with JumpCloud

ℹ️ Support
1

Hi,

I am trying to configure SAML Single Sign-On (SSO) between JumpCloud (Identity Provider) and Nextcloud (Service Provider) but I am getting an HTTP 405 Method Not Allowed error on the ACS URL after authentication.

2

This sounds like a web server or WAF configuration matter possibly. ACS uses HTTP POST.

Check logs of your frontend infrastructure for clues.

Other possibilities might be unexpected intermediate URLs (redirects) that aren’t landing where expected.