diff --git a/Dockerfile b/Dockerfile
index d0efcb2d..a648e769 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,7 @@ RUN addgroup -S appgroup && adduser -S appuser -G appgroup
 WORKDIR /app
 
 ENV PUBLIC_ADAPTER='docker-node'
+ENV VITE_ALLOWED_HOSTS='localhost'
 
 COPY . .
 
diff --git a/SELF_HOSTING.md b/SELF_HOSTING.md
index 17b0857b..b8d7257f 100644
--- a/SELF_HOSTING.md
+++ b/SELF_HOSTING.md
@@ -3,6 +3,7 @@
 - [Getting started](#getting-started)
 - [Updating to the latest version](#updating-to-the-latest-version)
 - [Connecting to an Ollama server hosted elsewhere](#connecting-to-an-ollama-server-hosted-elsewhere)
+- [Configuring allowed hosts](#configuring-allowed-hosts)
 
 ## Getting started
 
@@ -41,3 +42,15 @@ If you are using the publicly hosted version or your Docker server is on a separ
 ```bash
 OLLAMA_ORIGINS=https://hollama.fernando.is ollama serve
 ```
+
+## Configuring allowed hosts
+
+When hosting Hollama behind a reverse proxy or in a Kubernetes environment, you'll need to specify which domains are allowed to access the application. Use the `VITE_ALLOWED_HOSTS` environment variable to set this:
+
+```shell
+docker run --rm -d -p 4173:4173 \
+  -e VITE_ALLOWED_HOSTS='your-domain.com,another-domain.com' \
+  --name hollama ghcr.io/fmaclen/hollama:latest
+```
+
+Multiple domains can be specified by separating them with commas. If not specified, only 'localhost' will be allowed.
diff --git a/vite.config.ts b/vite.config.ts
index bbf8c7da..22b54c91 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -2,5 +2,13 @@ import { sveltekit } from '@sveltejs/kit/vite';
 import { defineConfig } from 'vite';
 
 export default defineConfig({
-	plugins: [sveltekit()]
+	plugins: [sveltekit()],
+	preview: {
+		// Allow all hosts in preview mode
+		host: true,
+		// Use environment variable for allowed hosts, falling back to localhost
+		allowedHosts: process.env.VITE_ALLOWED_HOSTS
+			? process.env.VITE_ALLOWED_HOSTS.split(',')
+			: ['localhost']
+	}
 });