title: How Can I Determine if HTTP Requests/Responses are compressed in IE7?
body: <p>I'm trying to use Fiddler (v2.2.2.0) to see if HTTP traffic through IE7 is being compressed. I'm not seeing Accept-Encoding or Content-Encoding request/response headers being sent/returned and I do not need to decode the response data once it's arrived, which leads me to believe that the responses are NOT coming back compressed. </p>
  
  <p>However, when making the same requests using FireFox 3.5.7, I could see through FireBug that FF was sending Accept-Encoding and YSlow at least thought my data was coming back compressed.</p>
  
  <p>A comment in this question: </p>
  
  <p><a href="https://stackoverflow.com/questions/897989/using-fiddler-to-check-iis-compression">Using Fiddler to check IIS Compression</a></p>
  
  <p>suggested that a proxy server may be to blame for stripping out headers and decompressing the content for security reasons. I am using Verizon FIOS for my broadband at home and am now wondering if Verizon is proxying my HTTP traffic?</p>
  
  <p>In short, how can I positively confirm/deny that responses are coming back compressed through IE?</p>
  
  <p>Thanks.</p>