diff --git a/.changes/disable-localhost-plugin-caching.md b/.changes/disable-localhost-plugin-caching.md
new file mode 100644
index 000000000..f33a8d1f1
--- /dev/null
+++ b/.changes/disable-localhost-plugin-caching.md
@@ -0,0 +1,5 @@
+---
+"localhost": patch
+---
+
+Disable caching on responses.
diff --git a/plugins/localhost/src/lib.rs b/plugins/localhost/src/lib.rs
index 5b00087fa..5d948b015 100644
--- a/plugins/localhost/src/lib.rs
+++ b/plugins/localhost/src/lib.rs
@@ -105,6 +105,10 @@ impl Builder {
                                     .insert("Content-Security-Policy".into(), csp);
                             }
 
+                            response
+                                .headers
+                                .insert("Cache-Control".into(), "no-cache".into());
+
                             if let Some(on_request) = &on_request {
                                 on_request(&request, &mut response);
                             }