diff --git a/packages/web/src/exit-hook.ts b/packages/web/src/exit-hook.ts
index ce8f3e1e..223c5da0 100644
--- a/packages/web/src/exit-hook.ts
+++ b/packages/web/src/exit-hook.ts
@@ -3,6 +3,9 @@ const callbacks = new Set<() => void>()
 let registered = false
 
 export function beforeExit(fn: () => void): () => void {
+    if (typeof window === 'undefined') {
+        return () => {}
+    }
     if (!registered) {
         registered = true
 
diff --git a/packages/web/src/worker.ts b/packages/web/src/worker.ts
index 885ac17c..e45f7463 100644
--- a/packages/web/src/worker.ts
+++ b/packages/web/src/worker.ts
@@ -26,15 +26,6 @@ export class TelegramWorker<T extends WorkerCustomMethods> extends TelegramWorke
 
         _registered = true
 
-        if (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope) {
-            const respond: RespondFn = self.postMessage.bind(self)
-
-            // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
-            self.addEventListener('message', (message) => handler(message.data, respond))
-
-            return respond
-        }
-
         if (typeof SharedWorkerGlobalScope !== 'undefined' && self instanceof SharedWorkerGlobalScope) {
             const connections: MessagePort[] = []
 
@@ -90,11 +81,21 @@ export class TelegramWorker<T extends WorkerCustomMethods> extends TelegramWorke
                     // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
                     handler(message.data, respond)
                 })
+                port.start()
             }
 
             return broadcast
         }
 
+        if (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope) {
+            const respond: RespondFn = self.postMessage.bind(self)
+
+            // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
+            self.addEventListener('message', (message) => handler(message.data, respond))
+
+            return respond
+        }
+
         throw new Error('TelegramWorker must be created from a worker')
     }
 }