diff --git a/pkg/compiler/test/analyses/api_allowed.json b/pkg/compiler/test/analyses/api_allowed.json
index 96aac80..2cfc954 100644
--- a/pkg/compiler/test/analyses/api_allowed.json
+++ b/pkg/compiler/test/analyses/api_allowed.json
@@ -28,9 +28,7 @@
   },
   "org-dartlang-sdk:///lib/html/dart2js/html_dart2js.dart": {
     "Dynamic access of 'style'.": 1,
-    "Dynamic invocation of 'remove'.": 2,
-    "Dynamic update to 'dart.dom.html::_innerHtml'.": 1,
-    "Dynamic access of 'firstChild'.": 2,
+    "Dynamic invocation of 'remove'.": 1,
     "Dynamic access of 'tagName'.": 2,
     "Dynamic invocation of 'call'.": 2,
     "Dynamic invocation of 'dart.dom.html::_initKeyboardEvent'.": 1,
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 6f210df..1107935 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -13783,7 +13783,7 @@
           _parseDocument!.createElement("body") as BodyElement;
     }
 
-    var contextElement;
+    Element contextElement;
     if (this is BodyElement) {
       contextElement = _parseDocument!.body!;
     } else {
@@ -13802,7 +13802,7 @@
 
       fragment = _parseDocument!.createDocumentFragment();
       while (contextElement.firstChild != null) {
-        fragment.append(contextElement.firstChild);
+        fragment.append(contextElement.firstChild!);
       }
     }
     if (contextElement != _parseDocument!.body) {