title: Issue using SAML for authentication with spring boot app
body: <p>I'm currently reading <a href="https://developer.okta.com/blog/2017/03/16/spring-boot-saml" rel="nofollow noreferrer">this article</a> on how to set up SAML with Spring Boot applications. </p>
  
  <p>I followed all the steps and I just changed the Single Sign On URL from "<a href="https://localhost:8443/saml/SSO" rel="nofollow noreferrer">https://localhost:8443/saml/SSO</a>" to "<a href="https://localhost:8443/mycompanysaml/SSO" rel="nofollow noreferrer">https://localhost:8443/mycompanysaml/SSO</a>". </p>
  
  <p>When I run the application, I see no errors in the IDE console, But the login page of Okta doesn't show on the browser. I have the following message.
  <a href="https://i.stack.imgur.com/x4YzS.png" rel="nofollow noreferrer">Error message in the browser</a></p>
  
  <p>And the stacktrace of the message in the console is the following :</p>
  
  <pre><code>2017-11-03 15:21:23.991  INFO 50013 --- [nio-8443-exec-7] o.a.c.c.C[Tomcat].[localhost].[/]       : Initializing Spring FrameworkServlet 'dispatcherServlet'
  2017-11-03 15:21:23.991  INFO 50013 --- [nio-8443-exec-7]o.s.web.servlet.DispatcherServlet        : FrameworkServlet'dispatcherServlet': initialization started
  2017-11-03 15:21:24.006  INFO 50013 --- [nio-8443-exec-7]o.s.web.servlet.DispatcherServlet        : FrameworkServlet'dispatcherServlet': initialization completed in 15 ms
  2017-11-03 15:21:24.021  INFO 50013 --- [nio-8443-exec-7]o.s.s.s.m.MetadataGeneratorFilter        : No default metadata configured, generating with default values, please pre-configure metadata for production use
  2017-11-03 15:21:24.060  INFO 50013 --- [nio-8443-exec-7]o.s.s.s.m.MetadataGeneratorFilter        : Created default metadata for system with entityID: https://localhost:8443/saml/metadata
  2017-11-03 15:21:24.708  INFO 50013 --- [nio-8443-exec-7].s.m.p.AbstractReloadingMetadataProvider : New metadata succesfullyloaded for 'https://dev-531605.oktapreview.com/app/exkcp2fsptqmfDGtf0h7/sso/saml/metadata'
  2017-11-03 15:21:24.720  INFO 50013 --- [nio-8443-exec-7].s.m.p.AbstractReloadingMetadataProvider : Next refresh cycle for metadata provider 'https://dev-531605.oktapreview.com/app/exkcp2fsptqmfDGtf0h7/sso/saml/metadata' will occur on '2017-11-04T01:21:24.240Z' ('2017-11-03T18:21:24.240-07:00' local time)
  2017-11-03 15:21:24.865  INFO 50013 --- [io-8443-exec-10]o.s.security.saml.log.SAMLDefaultLogger:AuthNRequest;SUCCESS;0:0:0:0:0:0:0:1;https://localhost:8443/saml/metadata;http://www.okta.com/exkcp2fsptqmfDGtf0h7;;;
  </code></pre>
  
  <p>Could someone please explain me what going on ? Is it because I changed the Single Sign On URL to my own, it shouldn't be a problem, right ?</p>
  
  <p>Thanks in advance for your help.
  G.</p>