1 This test does the following:
2 1. Load a page, trigger an XHR.
4 3. Dump the http readers for the reload of the XHR.
6 The XHR is trigger after onload has fired. There should not be an HTTP_CACHE_CONTROL header forcing reload, so an http cache could load the resource without contacting the server.
7 The test passes if there is no HTTP_CACHE_CONTROL header displayed below.