diff --git a/zundler/assets/inject_post.js b/zundler/assets/inject_post.js
index 1173c06..5a954c2 100644
--- a/zundler/assets/inject_post.js
+++ b/zundler/assets/inject_post.js
@@ -48,8 +48,8 @@ var is_virtual = function(url) {
     return (! (
         _url == "" ||
         _url[0] == "#" ||
-        _url.startsWith('https://') ||
-        _url.startsWith('http://') ||
+        _url.startsWith('https:/') ||
+        _url.startsWith('http:/') ||
         _url.startsWith('data:') ||
         _url.startsWith('about:srcdoc') ||
         _url.startsWith('blob:')
diff --git a/zundler/assets/main.js b/zundler/assets/main.js
index de371b3..5506cee 100644
--- a/zundler/assets/main.js
+++ b/zundler/assets/main.js
@@ -49,8 +49,8 @@ var is_virtual = function(url) {
     return (! (
         _url == "" ||
         _url[0] == "#" ||
-        _url.startsWith('https://') ||
-        _url.startsWith('http://') ||
+        _url.startsWith('https:/') ||
+        _url.startsWith('http:/') ||
         _url.startsWith('data:') ||
         _url.startsWith('about:srcdoc') ||
         _url.startsWith('blob:')