Fix race condition

www/common/loading.js

@@ -1,3 +1,18 @@
+(function () {
+try {
+    var req = JSON.parse(decodeURIComponent(window.location.hash.substring(1)));
+    var theme = req.theme;
+    var os = req.themeOS;
+    window.CryptPad_theme = theme || os;
+    if ((theme || os) === 'dark') {
+        var s = document.createElement('style');
+        s.innerHTML = 'body { background: black; }';
+        document.body.appendChild(s);
+    }
+    console.error(theme, os);
+} catch (e) { console.error(e); }
+})();
+
 require(['/customize/loading.js'], function (Loading) {
     Loading();
 });

www/common/sframe-boot2.js

@@ -1,13 +1,3 @@
-(function () {
-try {
-    if (!window.cryptpadStore) { return; }
-    var theme = window.cryptpadStore.store['colortheme'];
-    var os = window.cryptpadStore.store['colortheme_default'];
-    window.CryptPad_theme = theme || os;
-    console.error(theme, os);
-} catch (e) { console.error(e); }
-})();
-
 // This is stage 1, it can be changed but you must bump the version of the project.
 // Note: This must only be loaded from inside of a sandbox-iframe.
 define([

www/common/sframe-common-outer.js

@@ -11,10 +11,13 @@ define([
     common.initIframe = function (waitFor, isRt, pathname) {
         var requireConfig = RequireConfig();
         var lang = Messages._languageUsed;
+        var themeKey = 'CRYPTPAD_STORE|colortheme';
         var req = {
             cfg: requireConfig,
             req: [ '/common/loading.js' ],
             pfx: window.location.origin,
+            theme: localStorage[themeKey],
+            themeOS: localStorage[themeKey+'_default'],
             lang: lang
         };
         window.rc = requireConfig;