diff --git a/src/SessionWebSocketListener.ts b/src/SessionWebSocketListener.ts
new file mode 100644
index 0000000..a4241a3
--- /dev/null
+++ b/src/SessionWebSocketListener.ts
@@ -0,0 +1,51 @@
+import config from "config";
+import cookie from "cookie";
+import cookieParser from "cookie-parser";
+import {Request} from "express";
+import {Session} from "express-session";
+import {IncomingMessage} from "http";
+import {WebSocket} from "ws";
+
+import Application from "./Application.js";
+import RedisComponent from "./components/RedisComponent.js";
+import {logger} from "./Logger.js";
+import WebSocketListener from "./WebSocketListener.js";
+
+export default abstract class SessionWebSocketListener<A extends Application> extends WebSocketListener<A> {
+
+    public async handle(socket: WebSocket, request: IncomingMessage): Promise<void> {
+        socket.once('message', (data, isBinary) => {
+            if (isBinary) return socket.close(1003);
+
+            const cookies = cookie.parse(data.toString());
+            const sid = cookieParser.signedCookie(cookies['connect.sid'], config.get('session.secret'));
+
+            if (!sid) {
+                socket.close(1002, 'Could not decrypt provided session cookie.');
+                return;
+            }
+
+            const store = this.getApp().as(RedisComponent).getStore();
+            store.get(sid, (err, session) => {
+                if (err || !session) {
+                    logger.error(err, 'Error while initializing session in websocket for sid ' + sid);
+                    socket.close(1011);
+                    return;
+                }
+
+                session.id = sid;
+
+                store.createSession(<Request>request, session);
+                this.handleSessionSocket(socket, request, session as Session).catch(err => {
+                    logger.error(err, 'Error in websocket listener.');
+                });
+            });
+        });
+    }
+
+    protected abstract handleSessionSocket(
+        socket: WebSocket,
+        request: IncomingMessage,
+        session: Session,
+    ): Promise<void>;
+}
diff --git a/src/WebSocketListener.ts b/src/WebSocketListener.ts
index d934774..62316b9 100644
--- a/src/WebSocketListener.ts
+++ b/src/WebSocketListener.ts
@@ -1,4 +1,3 @@
-import {Session} from "express-session";
 import {IncomingMessage} from "http";
 import WebSocket from "ws";
 
@@ -20,6 +19,5 @@ export default abstract class WebSocketListener<T extends Application> {
     public abstract handle(
         socket: WebSocket,
         request: IncomingMessage,
-        session: Session | null,
     ): Promise<void>;
 }
diff --git a/src/assets/ts/WebsocketClient.ts b/src/assets/ts/WebsocketClient.ts
index 5017d64..db01210 100644
--- a/src/assets/ts/WebsocketClient.ts
+++ b/src/assets/ts/WebsocketClient.ts
@@ -17,6 +17,7 @@ export default class WebsocketClient {
         const websocket = new WebSocket(this.websocketUrl);
         websocket.onopen = () => {
             console.debug('Websocket connected');
+            websocket.send(document.cookie);
         };
         websocket.onmessage = (e) => {
             this.listener(websocket, e);
diff --git a/src/auth/magic_link/MagicLinkWebSocketListener.ts b/src/auth/magic_link/MagicLinkWebSocketListener.ts
index 5eced34..6ff3dd1 100644
--- a/src/auth/magic_link/MagicLinkWebSocketListener.ts
+++ b/src/auth/magic_link/MagicLinkWebSocketListener.ts
@@ -3,10 +3,10 @@ import {IncomingMessage} from "http";
 import WebSocket from "ws";
 
 import Application from "../../Application.js";
-import WebSocketListener from "../../WebSocketListener.js";
+import SessionWebSocketListener from "../../SessionWebSocketListener.js";
 import MagicLink from "../models/MagicLink.js";
 
-export default class MagicLinkWebSocketListener<A extends Application> extends WebSocketListener<A> {
+export default class MagicLinkWebSocketListener<A extends Application> extends SessionWebSocketListener<A> {
     private readonly connections: { [p: string]: (() => void)[] | undefined } = {};
 
     public refreshMagicLink(sessionId: string): void {
@@ -16,13 +16,7 @@ export default class MagicLinkWebSocketListener<A extends Application> extends W
         }
     }
 
-    public async handle(socket: WebSocket, request: IncomingMessage, session: Session | null): Promise<void> {
-        // Drop if requested without session
-        if (!session) {
-            socket.close(1002, 'Session is required for this request.');
-            return;
-        }
-
+    public async handleSessionSocket(socket: WebSocket, request: IncomingMessage, session: Session): Promise<void> {
         // Refuse any incoming data
         socket.on('message', () => {
             socket.close(1003);
@@ -37,19 +31,22 @@ export default class MagicLinkWebSocketListener<A extends Application> extends W
         // Refresh if immediately applicable
         if (!magicLink || !await magicLink.isValid() || await magicLink.isAuthorized()) {
             socket.send('refresh');
-            socket.close(1000);
+            const reason = magicLink ?
+                'Magic link state changed.' :
+                'Magic link not found for session ' + session.id;
+            socket.close(1000, reason);
             return;
         }
 
         const validityTimeout = setTimeout(() => {
             socket.send('refresh');
-            socket.close(1000);
+            socket.close(1000, 'Timed out');
         }, magicLink.getExpirationDate().getTime() - new Date().getTime());
 
         const f = () => {
             clearTimeout(validityTimeout);
             socket.send('refresh');
-            socket.close(1000);
+            socket.close(1000, 'Closed by server');
         };
 
         socket.on('close', () => {
diff --git a/src/components/SessionComponent.ts b/src/components/SessionComponent.ts
index 08774df..4f8a8b5 100644
--- a/src/components/SessionComponent.ts
+++ b/src/components/SessionComponent.ts
@@ -29,8 +29,9 @@ export default class SessionComponent extends ApplicationComponent {
             store: this.storeComponent.getStore(),
             resave: false,
             cookie: {
-                httpOnly: true,
+                httpOnly: false,
                 secure: config.get('session.cookie.secure'),
+                sameSite: 'strict',
             },
             rolling: true,
         }));
diff --git a/src/components/WebSocketServerComponent.ts b/src/components/WebSocketServerComponent.ts
index d4ec4d4..ffb4bd6 100644
--- a/src/components/WebSocketServerComponent.ts
+++ b/src/components/WebSocketServerComponent.ts
@@ -1,8 +1,5 @@
 import config from "config";
-import cookie from "cookie";
-import cookieParser from "cookie-parser";
-import {Express, Request, Router} from "express";
-import {Session} from "express-session";
+import {Express, Router} from "express";
 import {WebSocketServer} from "ws";
 
 import Application from "../Application.js";
@@ -45,37 +42,11 @@ export default class WebSocketServerComponent extends ApplicationComponent {
             if (!listener) {
                 socket.close(1002, `Path not found ${request.url}`);
                 return;
-            } else if (!request.headers.cookie) {
-                listener.handle(socket, request, null).catch(err => {
-                    logger.error(err, 'Error in websocket listener.');
-                });
-                return;
             }
 
             logger.debug(`Websocket on ${request.url}`);
-
-            const cookies = cookie.parse(request.headers.cookie);
-            const sid = cookieParser.signedCookie(cookies['connect.sid'], config.get('session.secret'));
-
-            if (!sid) {
-                socket.close(1002);
-                return;
-            }
-
-            const store = app.as(RedisComponent).getStore();
-            store.get(sid, (err, session) => {
-                if (err || !session) {
-                    logger.error(err, 'Error while initializing session in websocket.');
-                    socket.close(1011);
-                    return;
-                }
-
-                session.id = sid;
-
-                store.createSession(<Request>request, session);
-                listener.handle(socket, request, session as Session).catch(err => {
-                    logger.error(err, 'Error in websocket listener.');
-                });
+            listener.handle(socket, request).catch(err => {
+                logger.error(err, 'Error in websocket listener.');
             });
         });
     }
diff --git a/test/Authentication.test.ts b/test/Authentication.test.ts
index 2c5bbfc..48bd864 100644
--- a/test/Authentication.test.ts
+++ b/test/Authentication.test.ts
@@ -1185,12 +1185,12 @@ describe('Session persistence', () => {
 
         await followMagicLinkFromMail(agent, cookies);
 
-        expect(cookies[0]).toMatch(/^connect\.sid=.+; Path=\/; HttpOnly$/);
+        expect(cookies[0]).toMatch(/^connect\.sid=.+; Path=\/; SameSite=Strict$/);
 
         res = await agent.get('/csrf')
             .set('Cookie', cookies)
             .expect(200);
-        expect(res.get('Set-Cookie')[0]).toMatch(/^connect\.sid=.+; Path=\/; Expires=.+; HttpOnly$/);
+        expect(res.get('Set-Cookie')[0]).toMatch(/^connect\.sid=.+; Path=\/; Expires=.+; SameSite=Strict$/);
 
         // Logout
         await agent.post('/auth/logout')
@@ -1217,7 +1217,7 @@ describe('Session persistence', () => {
         const res = await agent.get('/csrf')
             .set('Cookie', cookies)
             .expect(200);
-        expect(res.get('Set-Cookie')[0]).toMatch(/^connect\.sid=.+; Path=\/; Expires=.+; HttpOnly$/);
+        expect(res.get('Set-Cookie')[0]).toMatch(/^connect\.sid=.+; Path=\/; Expires=.+; SameSite=Strict$/);
 
         // Logout
         await agent.post('/auth/logout')
@@ -1244,7 +1244,7 @@ describe('Session persistence', () => {
         const res = await agent.get('/csrf')
             .set('Cookie', cookies)
             .expect(200);
-        expect(res.get('Set-Cookie')[0]).toMatch(/^connect\.sid=.+; Path=\/; HttpOnly$/);
+        expect(res.get('Set-Cookie')[0]).toMatch(/^connect\.sid=.+; Path=\/; SameSite=Strict$/);
 
         // Logout
         await agent.post('/auth/logout')