diff --git a/code/lib/channels/src/postmessage/index.ts b/code/lib/channels/src/postmessage/index.ts
index 312a8d756295..a49997fc3d32 100644
--- a/code/lib/channels/src/postmessage/index.ts
+++ b/code/lib/channels/src/postmessage/index.ts
@@ -103,7 +103,7 @@ export class PostMessageTransport implements ChannelTransport {
 
     const frames = this.getFrames(target);
 
-    const query = qs.parse(location.search, { ignoreQueryPrefix: true });
+    const query = qs.parse(location?.search || '', { ignoreQueryPrefix: true });
 
     const data = stringify(
       {