W3C Test: import web-platform-tests/html/{introduction,obsolete}

LayoutTests/resources/testharnessreport.js

 /*
  * THIS FILE INTENTIONALLY LEFT BLANK
  *
  * More specifically, this file is intended for vendors to implement
  * code needed to integrate testharness.js tests with their own test systems.
  *
  * Typically such integration will attach callbacks when each test is
  * has run, using add_result_callback(callback(test)), or when the whole test file has
  * completed, using add_completion_callback(callback(tests, harness_status)).
  *
@@ skipping 91 matching lines @@
                 // Assume it's a CSSWG style test, and anything other than the log div isn't
                 // material to the testrunner output, so should be hidden from the text dump
                 for (var i = 0; i < document.body.children.length; i++) {
                     if (document.body.children[i] === logDiv) continue;
 
                     document.body.children[i].style.visibility = "hidden";
                 }
             }
         }
 
-        // Add results element to document
+        // Add results element to document.
+        if (!document.body)
+            document.documentElement.appendChild(document.createElement("body"));
         document.body.appendChild(results);
 
         if (self.testRunner)
             testRunner.notifyDone();
     }
 
-    if (!document.body || document.readyState === 'loading') {
+    if (document.readyState === 'loading') {
         window.addEventListener('load', done);
     } else {
         done();
     }
 });