1 files changed, 26 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/forms/the-input-element/resources/show-picker-child-iframe.html b/testing/web-platform/tests/html/semantics/forms/the-input-element/resources/show-picker-child-iframe.html
new file mode 100644
index 0000000000..07b72f02cb
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/forms/the-input-element/resources/show-picker-child-iframe.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>Test showPicker() in an iframe</title>
+<script type=module>
+import inputTypes from "./../input-types.js";
+
+const urlParams = new URLSearchParams(location.search);
+const documentDomain = urlParams.get('documentDomain');
+if (documentDomain) {
+  document.domain = documentDomain;
+}
+
+let securityErrors = [];
+for (const inputType of inputTypes) {
+  const input = document.createElement("input");
+  input.setAttribute("type", inputType);
+
+  try {
+    input.showPicker();
+  } catch (error) {
+    if (error instanceof DOMException && error.name == 'SecurityError') {
+      securityErrors.push(inputType);
+    }
+  }
+}
+parent.postMessage(securityErrors.join(','), "*");
+</script>