Após publicar a aplicação no HEROKU não consigo acessar a URL gerada.
Quando uso HTTPS:
Na tela exibe o 404 seguido de:
Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
No console do browser aparece :
Mixed Content: The page at 'https://cdcspringmvc-eduardofernandes.herokuapp.com/' was loaded over HTTPS, but requested an insecure favicon 'http://cdcspringmvc-eduardofernandes.herokuapp.com/login'. This request has been blocked; the content must be served over HTTPS.
Quando uso HTTP:
Message /WEB-INF/views/home.jsp
Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
Já comentei todas os links externos presentes no template e rodapé e ainda adicionei ao head a tag:
<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">