When Project Path has an Upper Case, lower case pages URL returns 404

Summary

When Project Path has an Upper Case, lower case pages URL return 404.

• e.g:
  • Project Path: https://example.gitlab.com/group/TestProject
  • Pages Domain: https://pages.example.gitlab.com
  • URL(200 Return, Works): https://group.pages.example.gitlab.com/TestProject
  • URL(404 Return): https://group.pages.example.gitlab.com/testproject

Related to: #434372 (comment 1723474801)

Steps to reproduce

Example Project

What is the current bug behavior?

What is the expected correct behavior?

We should follow whatever rules GitLab Rails has for naming a project/namespace.
Since we normalise the path for a project slug, it would make sense to serve the same content for both requests or redirect user to stored project path.

Relevant logs and/or screenshots

Output of checks

Possible fixes