title: Show request/response info in Chrome
body: <p>Is it possible to show request/response headers for the given page in In Google Chrome? I know that great Network tab from built-in developer tools can be used, however, it needs to be activated beforehand.. but sometimes one needs to show the info of the unique event, which already happened.</p>
  
  <p>Does Chrome/Chromium offer such info? (I looked at some relevant-looking resources from chrome://about, but could not find it.)</p>
  
  <p>If not, what extension would you recommend? </p>
  
  <p>(in Firefox, Live HTTP Headers add-on can be used, the headers are shown as an additional tab in the Page Info window)</p>