restore IE10 compatibility

src/Parser.js

@@ -10,7 +10,7 @@
 
 var IMPORT_LINK_TYPE = 'import';
 var flags = scope.flags;
-var isIe = /Trident/.test(navigator.userAgent);
+var isIE = scope.isIE;
 // TODO(sorvell): SD polyfill intrusion
 var mainDoc = window.ShadowDOMPolyfill ? 
     window.ShadowDOMPolyfill.wrapIfNeeded(document) : document;
@@ -173,7 +173,7 @@ var importParser = {
 
     // NOTE: IE does not fire "load" event for styles that have already loaded
     // This is in violation of the spec, so we try our hardest to work around it
-    if (isIe && elt.localName === 'style') {
+    if (isIE && elt.localName === 'style') {
       var fakeLoad = false;
       // If there's not @import in the textContent, assume it has loaded
       if (elt.textContent.indexOf('@import') == -1) {
@@ -330,6 +330,5 @@ var path = {
 // exports
 scope.parser = importParser;
 scope.path = path;
-scope.isIE = isIe;
 
 })(HTMLImports);

src/base.js

@@ -10,6 +10,8 @@
 var hasNative = ('import' in document.createElement('link'));
 var useNative = hasNative;
 
+isIE = /Trident/.test(navigator.userAgent);
+
 // TODO(sorvell): SD polyfill intrusion
 var mainDoc = window.ShadowDOMPolyfill ? 
     ShadowDOMPolyfill.wrapIfNeeded(document) : document;
@@ -41,7 +43,7 @@ function whenImportsReady(callback, doc) {
 }
 
 // call the callback when the document is in a ready state (has dom)
-var requiredReadyState = HTMLImports.isIE ? 'complete' : 'interactive';
+var requiredReadyState = isIE ? 'complete' : 'interactive';
 var READY_EVENT = 'readystatechange';
 function isDocumentReady(doc) {
   return (doc.readyState === 'complete' ||
@@ -152,6 +154,7 @@ whenImportsReady(function() {
 scope.useNative = useNative;
 scope.isImportLoaded = isImportLoaded;
 scope.whenReady = whenImportsReady;
+scope.isIE = isIE;
 
 // deprecated
 scope.whenImportsReady = whenImportsReady;