diff --git a/lib/less/browser.js b/lib/less/browser.js
index 2811b868..ae5e8b3e 100644
--- a/lib/less/browser.js
+++ b/lib/less/browser.js
@@ -20,7 +20,10 @@ var readyTimer = setInterval(function () {
             sheets = (document.querySelectorAll || jQuery).call(document, 'link[rel="stylesheet/less"]');
         }
         clearInterval(readyTimer);
-        loadStyleSheets(function (sheet, env) {
+
+        loadStyleSheets(function (root, sheet, env) {
+            createCSS(root.toCSS(), sheet, env.lastModified);
+
             if (env.local) {
                 log("less: loading " + sheet.href + " from local storage.");
             } else {
@@ -36,7 +39,9 @@ var readyTimer = setInterval(function () {
 if (less.env === 'development') {
     refreshTimer = setInterval(function () {
         if (/!refresh/.test(location.hash)) {
-            loadStyleSheets(function () {});
+            loadStyleSheets(function (root, sheet, lastModified) {
+                createCSS(root.toCSS(), sheet, lastModified);
+            });
         }
     }, 1000);
 }
@@ -56,19 +61,20 @@ function loadStyleSheet(sheet, callback) {
                        new(Date)(styles.timestamp).valueOf())) {
             // Use local copy
             createCSS(styles.css, sheet);
-            callback(sheet, {local: true})
+            callback(null, sheet, { local: true });
         } else {
             // Use remote copy (re-parse)
             new(less.Parser)({ optimization: 3 }).parse(data, function (e, root) {
                 if (e) { return error(e, sheet.href) }
                 try {
-                    createCSS(root.toCSS(), sheet, lastModified);
-                    callback(sheet, {local: false})
+                    callback(root, sheet, { local: false, lastModified: lastModified });
                 } catch (e) {
                     error(e, sheet.href);
                 }
             });
         }
+    }, function (status) {
+        throw new(Error)("Couldn't load " + sheet.href + " (" + status + ")");
     });
 }
 
@@ -104,7 +110,7 @@ function xhr(url, callback, errback) {
         if (xhr.status === 0) {
             callback(xhr.responseText);
         } else {
-            errback(xhr.responseText);
+            errback(xhr.status);
         }
     } else {
         xhr.open('GET', url, true);
@@ -114,7 +120,7 @@ function xhr(url, callback, errback) {
                     callback(xhr.responseText,
                              xhr.getResponseHeader("Last-Modified"));
                 } else if (typeof(errback) === 'function') {
-                    errback(xhr.responseText);
+                    errback(xhr.status);
                 }
             }
         };
@@ -207,4 +213,10 @@ function error(e, href) {
     }
 }
 
+less.Parser.importer = function (path, paths, callback) {
+    loadStyleSheet({ href: path, title: path }, function (root) {
+        callback(root);
+    });
+};
+
 })();