>> BAD HEADERS <<
HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: http://www.wunderground.com
Age: 0
Cache-Control: max-age=0, no-cache
Content-Encoding: gzip
Content-Length: 178
Content-Type: application/json; charset=UTF-8
Date: Mon, 15 Aug 2016 17:24:29 GMT
Expires: Mon, 15 Aug 2016 17:24:29 GMT
Pragma: no-cache
Server: Apache/2.2.15 (CentOS)
Set-Cookie: DT=1471281869:31253:365-q2; path=/; expires=Fri, 01-Jan-2020 00:00:00 GMT; domain=.wunderground.com
Set-Cookie: Prefs=FAVS:1|WXSN:1|PWSOBS:1|WPHO:1|PHOT:1|RADC:0|RADALL:0|HIST0:NULL|GIFT:1|PHOTOTHUMBS:50|; path=/; expires=Fri, 01-Jan-2020 00:00:00 GMT; domain=.wunderground.com
Vary: Accept-Encoding
Via: 1.1 localhost.localdomain
X-API-Error: true
X-CreationTime: 0.013

>> GOOD HEADERS <<
HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
Age: 0
Cache-Control: max-age=0, no-cache
Content-Encoding: gzip
Content-Length: 3311
Content-Type: application/json; charset=UTF-8
Date: Mon, 15 Aug 2016 17:25:44 GMT
Expires: Mon, 15 Aug 2016 17:25:44 GMT
Last-Modified: Mon, 15 Aug 2016 17:24:18 GMT
Pragma: no-cache
Server: Apache/2.2.15 (CentOS)
Vary: Accept-Encoding
Via: 1.1 localhost.localdomain
X-CreationTime: 0.305