diff --git a/lib/admin/apis.js b/lib/admin/apis.js
index 5bbe49a..e4ea68e 100644
--- a/lib/admin/apis.js
+++ b/lib/admin/apis.js
@@ -60,6 +60,13 @@ module.exports.create = function (deps, conf) {
   }
 
   function isAuthorized(req, res, fn) {
+    // OPTIONS requests are only to determine if a particular request is allowed, and the
+    // browser won't send the session header with this request, so don't try to authenticate.
+    if (req.method === 'OPTIONS') {
+      fn();
+      return;
+    }
+
     var auth = jwt.decode((req.headers.authorization||'').replace(/^bearer\s+/i, ''));
     if (!auth) {
       res.statusCode = 401;
diff --git a/lib/admin/config.js b/lib/admin/config.js
index 41f40a4..2d10423 100644
--- a/lib/admin/config.js
+++ b/lib/admin/config.js
@@ -50,9 +50,8 @@ var moduleSchemas = {
   }
 
   // the dns control modules for DDNS
-, dns_oauth3_org: {
-    name: 'dns@oauth3.org'
-  , type: 'object'
+, 'dns@oauth3.org': {
+    type: 'object'
   , required: [ 'token_id' ]
   , properties: {
       token_id: { type: 'string' }
@@ -67,10 +66,6 @@ moduleSchemas.forward.properties.ports = { type: 'array', items: portSchema };
 
 Object.keys(moduleSchemas).forEach(function (name) {
   var schema = moduleSchemas[name];
-  if (schema.name) {
-    name = schema.name;
-    delete schema.name;
-  }
   schema.id = '/modules/'+name;
   schema.required = ['id', 'type'].concat(schema.required || []);
   schema.properties.id   = { type: 'string' };
diff --git a/lib/ddns/index.js b/lib/ddns/index.js
index 60878cf..df70ab9 100644
--- a/lib/ddns/index.js
+++ b/lib/ddns/index.js
@@ -265,8 +265,14 @@ module.exports.create = function (deps, conf) {
     }).filter(Boolean));
   }
 
-  recheckPubAddr();
-  setInterval(recheckPubAddr, 5*60*1000);
+  function check() {
+    recheckPubAddr().catch(function (err) {
+      console.error('failed to handle all actions needed for DDNS');
+      console.error(err);
+    });
+  }
+  check();
+  setInterval(check, 5*60*1000);
 
   var curConf;
   function updateConf() {
diff --git a/lib/modules/tls.js b/lib/modules/tls.js
index 2b9a614..63d4d38 100644
--- a/lib/modules/tls.js
+++ b/lib/modules/tls.js
@@ -50,10 +50,7 @@ module.exports.create = function (deps, config, netHandler) {
         return;
       }
 
-      process.nextTick(function () {
-        socket.unshift(opts.firstChunk);
-      });
-
+      writer.write(opts.firstChunk);
       socket.pipe(writer);
       writer.pipe(socket);
 
diff --git a/package-lock.json b/package-lock.json
index 08e55c5..67f9108 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1907,9 +1907,9 @@
       }
     },
     "socket-pair": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/socket-pair/-/socket-pair-1.0.1.tgz",
-      "integrity": "sha1-mneFcEv9yOj2NxwodeyjIeMT/po=",
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/socket-pair/-/socket-pair-1.0.3.tgz",
+      "integrity": "sha512-O1WJMNIPAAGCzzJi1Lk9K9adctKM4DukiUO6G6sQSs+CqEAZ5uGX86uIMDKygBZZr62YHDoOGH1rJShOzw6i9Q==",
       "requires": {
         "bluebird": "3.5.0"
       }
diff --git a/package.json b/package.json
index 9028745..20387c8 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "serve-static": "^1.10.0",
     "server-destroy": "^1.0.1",
     "sni": "^1.0.0",
-    "socket-pair": "^1.0.1",
+    "socket-pair": "^1.0.3",
     "socksv5": "0.0.6",
     "stunnel": "git+https://git.daplie.com/Daplie/node-tunnel-client.git#v1",
     "stunneld": "git+https://git.daplie.com/Daplie/node-tunnel-server.git#v1",