1 files changed, 18 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/forms/the-form-element/resources/form-with-action.sub.html b/testing/web-platform/tests/html/semantics/forms/the-form-element/resources/form-with-action.sub.html
new file mode 100644
index 0000000000..97e800a561
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/forms/the-form-element/resources/form-with-action.sub.html
@@ -0,0 +1,18 @@
+<!doctype html>
+
+<form action="{{GET[action]}}">
+  <input type="text" name="name" value="value">
+  <input type="submit" value="Submit">
+</form>
+
+<script>
+"use strict";
+
+if (window.location.search.startsWith("?name=value")) {
+  // The action pointed to ourself, so the form submitted something
+  window.parent.success(window.location.href);
+} else {
+  const form = document.querySelector("form");
+  form.submit();
+}
+</script>