diff --git a/frontend/src/terminal.ts b/frontend/src/terminal.ts
index cd7c395..dc6d884 100644
--- a/frontend/src/terminal.ts
+++ b/frontend/src/terminal.ts
@@ -19,7 +19,7 @@ async function main() {
     const params = new URLSearchParams(window.location.search);
     let origin: URL
     if (params.has("host") || params.has("port")) {
-        origin = new URL(`${params.get("host") || "localhost"}:${params.get("port") || 9999}`)
+        origin = new URL(`http://${params.get("host") || "localhost"}:${params.get("port") || 9999}`)
     } else if (__TWEETY_ORIGIN__) {
         origin = new URL(__TWEETY_ORIGIN__)
     } else {
diff --git a/go.mod b/go.mod
index cecfca7..a5c8c76 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,7 @@ go 1.20
 require (
 	github.com/creack/pty v1.1.18
 	github.com/go-chi/chi/v5 v5.0.10
+	github.com/go-chi/cors v1.2.1
 	github.com/gorilla/websocket v1.5.0
 	github.com/phayes/freeport v0.0.0-20220201140144-74d24b5ae9f5
 	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1
@@ -13,7 +14,6 @@ require (
 )
 
 require (
-	github.com/go-chi/cors v1.2.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 )