diff --git a/www/common/boot2.js b/www/common/boot2.js
index 72519b73e..2ea7f9b73 100644
--- a/www/common/boot2.js
+++ b/www/common/boot2.js
@@ -3,4 +3,6 @@ define([], function () {
     // fix up locations so that relative urls work.
     require.config({ baseUrl: window.location.pathname });
     require([document.querySelector('script[data-bootload]').getAttribute('data-bootload')]);
+    require(['/common/rewrite-css.js']);
 });
+
diff --git a/www/common/rewrite-css.js b/www/common/rewrite-css.js
new file mode 100644
index 000000000..98c81b35c
--- /dev/null
+++ b/www/common/rewrite-css.js
@@ -0,0 +1,10 @@
+define([
+    '/api/config',
+], function (Config) {
+    if (!(Config && Config.requireConf && Config.requireConf.urlArgs)) { return; }
+
+    document.querySelectorAll('link[rel="stylesheet"][data-rewrite-href]').forEach(function (e) {
+        e.setAttribute('href', e.getAttribute('data-rewrite-href'));
+    });
+});
+