use pretty urls in mock prodServer

[hutchgrant]

Type of Change

• New Feature Request
• Documentation / Website
• Improvement / Suggestion
• Bug
• Other (please clarify below)

Summary

In production server, currently we have URLs being rewritten to end with index.html e.g. /docs/index.html. Since we're using pretty URLs by default in development and production, our mock prodution server should also use pretty URLs.

Details

Modify server. js not to redirect links ending with / to index.html and instead read both .html and / ending links then return the body with the request files.