diff --git a/node_modules/c9/urls.js b/node_modules/c9/urls.js
index a1b000af..8f5fc472 100644
--- a/node_modules/c9/urls.js
+++ b/node_modules/c9/urls.js
@@ -22,6 +22,14 @@ function main(options, imports, register) {
     });
 }
 
+plugin.getHost = function(req) {
+    return (req.headers && req.headers.host
+        || req.host
+        || req.url && req.url.replace(/^https?:\/\/([^/]*).*/, "$1")
+        || req
+    );
+};
+
 /**
  * Get a desired base URL, given some context.
  * 
@@ -30,10 +38,8 @@ function main(options, imports, register) {
  * @param {String} targetBaseUrlPattern   The target URL pattern, e.g. https://$DOMAIN
  */
 plugin.getBaseUrl = function(req, sourceBaseUrlPattern, targetBaseUrlPattern) {
-    var sourceHost = req.headers && req.headers.host
-        || req.host
-        || req.url && req.url.replace(/^https?:\/\/([^/]*).*/, "$1")
-        || req;
+    var sourceHost = plugin.getHost(req);
+    
     if (typeof sourceHost !== "string")
         throw new Error("Not a valid request object: " + req);
     if (!sourceBaseUrlPattern)