./casperjs sample.js http://test.com/i/
[info] [phantom] Starting...
[info] [phantom] Running suite: 3 steps
[debug] [phantom] opening url: http://test.com/i/, HTTP GET
[debug] [phantom] Navigation requested: url=http://test.com/i/, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "http://test.com/i/"
[debug] [phantom] Navigation requested: url=http://test.com/i/i1.html, type=Other, willNavigate=true, isMainFrame=false
[debug] [phantom] Successfully injected Casper client-side utilities
[info] [phantom] Step anonymous 2/3 http://test.com/i/ (HTTP 200)
[debug] [phantom] Navigation requested: url=about:blank, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "about:blank"