1 files changed, 2 insertions, 1 deletions
diff --git a/cli/js/body.ts b/cli/js/body.ts
index fc12efa8a..ed21fa0ec 100644
--- a/cli/js/body.ts
+++ b/cli/js/body.ts
@@ -143,9 +143,10 @@ export class Body implements domTypes.Body {
       this._stream = this._bodySource;
     }
     if (typeof this._bodySource === "string") {
+      const bodySource = this._bodySource;
       this._stream = new ReadableStream({
         start(controller: ReadableStreamController): void {
-          controller.enqueue(this._bodySource);
+          controller.enqueue(bodySource);
           controller.close();
         }
       });