diff --git a/static/galene.js b/static/galene.js
index f145b27..6521641 100644
--- a/static/galene.js
+++ b/static/galene.js
@@ -3164,23 +3164,15 @@ function parseExpiration(s) {
     return d;
 }
 
-function protocol2Predicate() {
-    if(serverConnection.version === "1")
-        return "This server is too old";
-    return null;
-}
-
 function makeTokenPredicate() {
-    return protocol2Predicate() ||
-        (serverConnection.permissions.indexOf('token') < 0 ?
-         "You don't have permission to create tokens" : null);
+    return (serverConnection.permissions.indexOf('token') < 0 ?
+            "You don't have permission to create tokens" : null);
 }
 
 function editTokenPredicate() {
-    return protocol2Predicate() ||
-        (serverConnection.permissions.indexOf('token') < 0 ||
-         serverConnection.permissions.indexOf('op') < 0 ?
-         "You don't have permission to edit or list tokens" : null);
+    return (serverConnection.permissions.indexOf('token') < 0 ||
+            serverConnection.permissions.indexOf('op') < 0 ?
+            "You don't have permission to edit or list tokens" : null);
 }
 
 /**
diff --git a/static/protocol.js b/static/protocol.js
index 59ab1ed..a7ede26 100644
--- a/static/protocol.js
+++ b/static/protocol.js
@@ -298,7 +298,7 @@ ServerConnection.prototype.connect = async function(url) {
         this.socket.onopen = function(e) {
             sc.send({
                 type: 'handshake',
-                version: ["2", "1"],
+                version: ["2"],
                 id: sc.id,
             });
             if(sc.onconnected)
@@ -332,19 +332,11 @@ ServerConnection.prototype.connect = async function(url) {
             let m = JSON.parse(e.data);
             switch(m.type) {
             case 'handshake': {
-                /** @type {string} */
-                let v;
-                if(!m.version || !(m.version instanceof Array) ||
-                   m.version.length < 1 || typeof(m.version[0]) !== 'string') {
-                    v = null;
-                } else {
-                    v = m.version[0];
-                }
-                if(v === "1" || v === "2") {
-                    sc.version = v;
-                } else {
-                    console.warn(`Unknown protocol version ${v || m.version}`);
-                    sc.version = "1"
+                if(m.version === "2")
+                    sc.version = m.version;
+                else {
+                    console.error(`Unknown protocol version ${m.version}`);
+                    throw new Error(`Unknown protocol version ${m.version}`);
                 }
                 break;
             }