Études 12-1 et seq. -- NOAA website returns 403

[MatthewMDavis]

Études 12-1, 12-2 and 12-3 can't be completed anymore. The server at NOAA returns a 403 now.

[FrogBomb]

It looks like the website is suddenly really particular about headers. I basically just copied all the headers my browser was using, and turned it into a request in elixir. I eventually cut it down to just the User-Agent header, and it still worked. The book should probably update to include the needed header. As for now, this worked using :httpc.request/4 (I just put in the url for the station "KSJC" in this instance):

:httpc.request(:get,
               {'http://w1.weather.gov/xml/current_obs/KSJC.xml',  
                [ {'User-Agent','Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36'} ]}, [], [])