Your question is Debug a Repository with MIME-Type Issues. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe how you would approach debugging a provided repository to resolve specific functional issues or MIME-type errors.
Explain how you would first reproduce and isolate each issue, inspect the relevant request and response details, and determine whether the cause is in application code, build configuration, static-file serving, or a proxy. Include how you would verify the fix and prevent regressions. Keep the discussion focused on a web repository and HTTP behavior.