Fixes https://github.com/Polymer/HTMLImports/issues/76

sorvell · sorvell · commit 35e6cbed2002 · 2014-09-10T16:42:02.000-07:00
diff --git a/src/base.js b/src/base.js
@@ -111,8 +111,14 @@ function watchImportsLoad(callback, doc) {
 
 // NOTE: test for native imports loading is based on explicitly watching
 // all imports (see below).
+// We cannot rely on this entirely without watching the entire document
+// for import links. For perf reasons, currently only head is watched.
+// Instead, we fallback to checking if the import property is available 
+// and the document is not itself loading. 
 function isImportLoaded(link) {
-  return useNative ? link.__loaded : link.__importParsed;
+  return useNative ? link.__loaded || 
+      (link.import && link.import.readyState !== 'loading') :
+      link.__importParsed;
 }
 
 // TODO(sorvell): Workaround for 
diff --git a/test/html/HTMLImportsLoaded-native.html b/test/html/HTMLImportsLoaded-native.html
@@ -19,15 +19,14 @@
     <script src="../../src/base.js"></script>
     <script src="../../../tools/test/htmltest.js"></script>
     <script src="../../../tools/test/chai/chai.js"></script>
-    
-    <link rel="import" href="imports/import-1.html">
   </head>
   <body>
+    <link rel="import" href="imports/import-1.html">
     <script>
       if (!HTMLImports.useNative) {
         done();
       } else {
-        addEventListener('HTMLImportsLoaded', function() {
+        addEventListener('HTMLImportsLoaded', function(e) {
           chai.assert.ok(true, 'HTMLImportsLoaded');
           done();
         });
