diff --git a/docker/entrypoint.sh b/docker/entrypoint.sh
index 511bb338..b72467d5 100644
--- a/docker/entrypoint.sh
+++ b/docker/entrypoint.sh
@@ -135,6 +135,12 @@ fi
echo "Starting nginx..."
nginx -c /tmp/nginx/nginx.conf
+# Inject runtime BASE_PATH into frontend if configured
+if [ -n "$BASE_PATH" ]; then
+ echo "Injecting BASE_PATH: $BASE_PATH"
+ find /app/html -name "index.html" -exec sed -i "s|window.__TERMIX_BASE_PATH__ = \"\"|window.__TERMIX_BASE_PATH__ = \"$BASE_PATH\"|g" {} \;
+fi
+
echo "Starting backend services..."
cd /app
export NODE_ENV=production
diff --git a/index.html b/index.html
index c3d2bf08..f774a2b1 100644
--- a/index.html
+++ b/index.html
@@ -47,6 +47,7 @@
+
diff --git a/src/ui/lib/base-path.ts b/src/ui/lib/base-path.ts
index 0352e12c..a06aad52 100644
--- a/src/ui/lib/base-path.ts
+++ b/src/ui/lib/base-path.ts
@@ -1,4 +1,9 @@
export function getBasePath(): string {
+ const runtime = (window as unknown as Record)
+ .__TERMIX_BASE_PATH__ as string | undefined;
+ if (runtime) {
+ return runtime.endsWith("/") ? runtime.slice(0, -1) : runtime;
+ }
const base = import.meta.env.BASE_URL || "/";
if (base === "./" || base === "/") return "";
return base.endsWith("/") ? base.slice(0, -1) : base;