all requests have no content-encoding or have 'gzip,gzip', both of which fail to decompress browser side.
note: the content-encoding header, when it is present, does not seem to be included in the fiddler copy op. but as stated, it is either absent or malformed on all requests.
GET /1.0/users/14/tags?key=qgAq_KfDu0KYzlNG-qaTuw&jsonp=Soapi._jsonp32 HTTP/1.1
Accept: */*
Referer: http://localhost:17742/AlphaQuickStart.htm
Accept-Language: en-US
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; Tablet PC 2.0; .NET4.0C; .NET4.0E)
Accept-Encoding: gzip, deflate
Host: api.stackapps.com
Connection: Keep-Alive
HTTP/1.1 200 OK
Server: nginx
Date: Sat, 21 Aug 2010 02:29:01 GMT
Content-Type: application/json; charset=utf-8
Connection: keep-alive
Cache-Control: private
X-AspNetMvc-Version: 2.0
X-RateLimit-Max: 10000
X-RateLimit-Current: 9931
X-AspNet-Version: 4.0.30319
Content-Length: 1062
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