--- shadow_dom.debug.js.orig	2014-01-09 17:38:03.000000000 -0800
+++ shadow_dom.debug.js	2014-01-09 17:36:23.000000000 -0800
@@ -100,6 +100,9 @@
     // don't test for eval if document has CSP securityPolicy object and we can see that
     // eval is not supported. This avoids an error message in console even when the exception
     // is caught
+    if (chrome.app.runtime) {
+      return false;
+    }
     if (global.document &&
         'securityPolicy' in global.document &&
         !global.document.securityPolicy.allowsEval) {
@@ -1475,6 +1478,9 @@
   // even when the exception is caught
   var hasEval = !('securityPolicy' in document) ||
       document.securityPolicy.allowsEval;
+  if (chrome.app.runtime) {
+    hasEval = false;
+  }
   if (hasEval) {
     try {
       var f = new Function('', 'return true;');
@@ -6576,6 +6582,9 @@
   // change a selector like 'div' to 'name div'
   scopeRules: function(cssRules, name, typeExtension) {
     var cssText = '';
+    if (cssRules == null) {
+      return cssText
+    }
     Array.prototype.forEach.call(cssRules, function(rule) {
       if (rule.selectorText && (rule.style && rule.style.cssText)) {
         cssText += this.scopeSelector(rule.selectorText, name, typeExtension,