Azure AD SSO not working after updating SAML module to 3.6.19
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I’ve run into an issue after updating the SAML module in my Mendix app from version 3.6.7 to 3.6.19. Since the update, SSO with Azure AD has stopped working. I have two other IdPs that still work fine, so the problem seems to be just with Azure. Azure AD was working perfectly before the update, using the exact same configuration. I didn’t change the configuration. I already tried setting up a new configuration and had the broker on the Azure side re-import the metadata, but that didn’t help. When I try to log in using Azure AD, I get a 400 error in the browser before even reaching the login page. According to the broker, they don’t see any request coming in. On the Mendix side, I don’t see any errors either. The redirect URL is generated, but the actual redirect doesn’t happen. Has anyone else seen this problem with this SAML version and Azure AD? Any ideas on what might be wrong?