TestShib: Error Message: No peer endpoint available to which to send SAML response

[paultrotter50]

I have been trying to set up Gerard Braad's example app. I exported my metadata to an XML file. I have been trying to use TestShib for testing. I have uploaded the meta I created to testshib.org/register. When I run the app the login link leads to the testshib login page as expected, but when I try to log (un: myself / pw: myself) I get the error message:
Error Message: No peer endpoint available to which to send SAML response

My config.js settings are almost unchanged from Gerard Braad's example :
path: process.env.SAML_PATH || '/login/callback',
entryPoint: process.env.SAML_ENTRY_POINT || 'https://idp.testshib.org/idp/profile/SAML2/Redirect/SSO',
issuer: 'passport-saml',
cert: process.env.SAML_CERT || null

I have attached the relevant lines from the TestShib log
shib-log.txt

The log line that seems to highlight the issue is: 11:10:25.654 - WARN [org.opensaml.saml2.binding.AuthnResponseEndpointSelector:206] - Relying party 'passport-saml' requested the response to be returned to endpoint with ACS URL 'http://localhost:3000/login/callback' and binding 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST' however no endpoint, with that URL and using a supported binding, can be found in the relying party's metadata

Any advice on this would be appreciated

[paultrotter50]

I believe I have got this issue resolved. The problem seemed to be that then line from the example (issuer: 'passport-saml') made me think a name was required here. Actually this seems to require the URL of the service provider (issuer: 'http://localhost:3000'). I haven't finished getting passport-saml working - Its now showing the callback page with an error message, but this is an improvement as it wasn't even getting there before.