Fixes https://github.com/Polymer/HTMLImports/issues/72 and adds test to show that https://github.com/Polymer/HTMLImports/issues/35 is fixed.

sorvell · sorvell · commit 3bfcb96d419d · 2014-08-18T16:30:29.000-07:00
diff --git a/src/HTMLImports.js b/src/HTMLImports.js
@@ -152,7 +152,8 @@ if (!useNative) {
   if (!document.baseURI) {
     var baseURIDescriptor = {
       get: function() {
-        return window.location.href;
+        var base = document.querySelector('base');
+        return base ? base.href : window.location.href;
       },
       configurable: true
     };
diff --git a/test/html/base/load-base.html b/test/html/base/load-base.html
@@ -0,0 +1,50 @@
+<!doctype html>
+<html>
+  <head>
+    <title>base load test</title>
+    <base href="../../html/">
+    <script>
+      window.loadEvents = 0;
+      (function() {
+        function importLoaded(event) {
+          window.loadEvents++;
+          if (event.type === 'load' && event.target.import) {
+            var s = event.target.import.querySelector('script');
+            chai.assert.ok(s, 'load event target can be used to find element in import');
+          }
+        }
+
+        function importError(event) {
+          window.loadEvents++;
+        }
+
+        window.importLoaded = importLoaded;
+        window.importError = importError;
+      })();
+    </script>
+    <script src="../../../tools/test/htmltest.js"></script>
+    <script src="../../../tools/test/chai/chai.js"></script>
+    <script src="../../html-imports.js"></script>
+    <link rel="import" href="imports/load-1.html" onload="importLoaded(event)">
+    <link rel="import" href="imports/load-2.html" onload="importLoaded(event)">
+    <link rel="import" id="willError" href="imports/404.html" onerror="importError(event)">
+  </head>
+  <body>
+    <div id="test1" class="red">Test</div>
+    <div id="test2" class="blue">Test</div>
+    <div id="test3" class="image"></div>
+    <script>
+      document.addEventListener('HTMLImportsLoaded', function() {
+        var baseURI = location.href.replace('base/load-base.html', '').replace(location.search, '');
+        chai.assert.equal(document.baseURI, baseURI, 'document.baseURI is correctly modified by base element');
+        //
+        chai.assert.equal(loadEvents, 3, 'expected # of load events');
+        var test1 = getComputedStyle(document.querySelector('#test1')).backgroundColor;
+        chai.assert.equal(test1, 'rgb(255, 0, 0)');
+        var test2 = getComputedStyle(document.querySelector('#test2')).backgroundColor;
+        chai.assert.equal(test2, 'rgb(0, 0, 255)');
+        done();
+      });
+    </script>
+  </body>
+</html>
diff --git a/test/js/tests.js b/test/js/tests.js
@@ -11,6 +11,7 @@ htmlSuite('HTMLImports', function() {
   htmlTest('html/style-paths.html');
   htmlTest('html/load.html');
   htmlTest('html/load-404.html');
+  htmlTest('html/base/load-base.html');
   htmlTest('html/currentScript.html');
   htmlTest('html/dedupe.html');
   htmlTest('html/dynamic.html');
