michael@0: function test() {
michael@0:   waitForExplicitFinish(); 
michael@0: 
michael@0:   var newTab;
michael@0:   var newBrowser;
michael@0:   const secMan = Cc["@mozilla.org/scriptsecuritymanager;1"].getService(Ci.nsIScriptSecurityManager);
michael@0: 
michael@0:   function testLoad(event) {
michael@0:     newBrowser.removeEventListener("load", testLoad, true);
michael@0:     is (event.target, newBrowser.contentDocument, "Unexpected target");
michael@0:     var prin = newBrowser.contentDocument.nodePrincipal;
michael@0:     isnot(prin, null, "Loaded principal must not be null");
michael@0:     isnot(prin, undefined, "Loaded principal must not be undefined");
michael@0:     is(secMan.isSystemPrincipal(prin), false,
michael@0:        "Loaded principal must not be system");
michael@0:     gBrowser.removeTab(newTab);
michael@0: 
michael@0:     finish();
michael@0:   }
michael@0: 
michael@0:   newTab = gBrowser.addTab();
michael@0:   newBrowser = gBrowser.getBrowserForTab(newTab);
michael@0:   newBrowser.contentWindow.location.href = "about:blank"
michael@0:   newBrowser.addEventListener("load", testLoad, true);
michael@0: }
michael@0: