Add an example of health check.

[aaugustin]

Fix #354.

[codecov]

Codecov Report

Merging #387 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #387   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          29     29           
  Lines        3066   3063    -3     
  Branches      318    318           
=====================================
- Hits         3066   3063    -3

Impacted Files	Coverage Δ
websockets/test_protocol.py	100% <0%> (ø)	⬆️
websockets/protocol.py	100% <0%> (ø)	⬆️

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[ddehghan]

I would add this.

elif path not in ['/', '/socket']:
          return BAD_REQUEST, [('Content-Length', 0)], ""

This will prevent bots visiting the root of the domain from causing exceptions.

Also it would be good to name the socket endpoint with en explicit name like /socket. this way you can filter out the traffic generated by bots to the root and other random urls. These will cause exceptions and operation headaches.