Bug 1574884 [wpt PR 18536] - HTML: window.open()'s url parameter defa…

…ult, a=testonly

Automatic update from web-platform-tests
HTML: window.open()'s url parameter default

For whatwg/html#4851.

--

wpt-commits: 539b160b7ff726968281bab083189bd76dce2c33
wpt-pr: 18536

UltraBlame original commit: 351e0b961b79af4e37fc77910aeb6ddee4010ef0

testing/web-platform/tests/html/browsers/the-window-object/window-open-defaults.window.js

@@ -0,0 +1,12 @@
+async_test(t => {
+  const frame = document.createElement("iframe");
+  t.add_cleanup(() => frame.remove());
+  frame.name = "foo";
+  frame.src = "/common/blank.html";
+  frame.onload = t.step_func(() => {
+    frame.onload = t.unreached_func();
+    t.step_timeout(() => t.done(), 500);
+    assert_equals(window[0], window.open(undefined, "foo"));
+  });
+  document.body.append(frame);
+}, "window.open()'s url parameter default");