Introduce a flag to disable the default home page

[JDA88]

Multiple security audits got triggered on our company because they found the windows exporter service responded with an html page at the root and exposed the endpoint from there (/metrics, /health, /version)

Even though I’m not a big fan of security by obfuscation maybe introducing a flag to disable the home page (/) could make sense and make the exporter less visible in enterprise environment.

[JDA88]

Is this similar to the fix #1448 ?

[maomaoaichirou]

@jkroepke hi jkroepke How do I configure it to disable secondary path debug/pprofh/ ？

[jkroepke]

#1448