diff --git a/slhx-js/runtime/slhx.js b/slhx-js/runtime/slhx.js
index b665492..8041874 100644
--- a/slhx-js/runtime/slhx.js
+++ b/slhx-js/runtime/slhx.js
@@ -394,6 +394,16 @@
           navigate(nav);
           return;
         }
+        if (name === "click") {
+          const submitter = closestInRoot(event.target, root, "button[type=submit], input[type=submit], button:not([type])");
+          const form = submitter && submitter.closest("form");
+          if (form && root.contains(form) && handleId(form)) {
+            if (form.reportValidity && !form.reportValidity()) return;
+            event.preventDefault();
+            schedule(form, "submit");
+            return;
+          }
+        }
         const el = closestInRoot(event.target, root, `[${HID}], [data-slhx-boost] form`);
         if (!el || defaultEvent(el) !== name) return;
         event.preventDefault();
diff --git a/slhx-js/tests/runtime.rs b/slhx-js/tests/runtime.rs
index 7877739..a9eae39 100644
--- a/slhx-js/tests/runtime.rs
+++ b/slhx-js/tests/runtime.rs
@@ -17,6 +17,16 @@ fn runtime_handles_get_forms_without_request_body() {
     assert!(source.contains("if (method === \"GET\") url.search = urlEncoded(data).toString()"));
 }
 
+#[test]
+fn runtime_clicking_submitter_schedules_form_submit() {
+    // req: convention/004
+    let source = slhx_js::RUNTIME_JS;
+
+    assert!(source.contains("button[type=submit], input[type=submit], button:not([type])"));
+    assert!(source.contains("form.reportValidity && !form.reportValidity()"));
+    assert!(source.contains("schedule(form, \"submit\")"));
+}
+
 #[test]
 fn runtime_supports_queued_request_policy() {
     let source = slhx_js::RUNTIME_JS;