title: uncompress gzipped assets with custom extension in browser
body: <p>We want to serve <a href="https://stackoverflow.com/questions/8080824/how-to-serve-gzipped-assets-from-amazon-s3">gzipped files to the browser</a> and it seems to be working with common file extensions such as css, txt, js etc.</p>
  
  <p>However, when we change the extension to something else for e.g. filename.abc browser does not uncompress gzipped file even though Content-Encoding header is gzip. We have tried various combinations with Content-Type header.</p>
  
  <p>How can we keep the custom extension of a file (say .abc) and still have browsers uncompress gzipped file automatically based on header info?</p>