module-dynamic-import.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/webappapis/dynamic-markup-insertion/document-write/module-dynamic-import.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>document.write in an imported module</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id="log"></div>

<script>

async_test(t => {

  const iframe = document.createElement("iframe");

  iframe.onerror = t.unreached_func("Error loading iframe");

  let onLoadWasCalled = false;

  iframe.onload = t.step_func(() => {

    onLoadWasCalled = true;

    assert_equals(iframe.contentDocument.body.textContent, "Initial body contents\n");

    // Don't call the event handler another time after document.write.

    iframe.onload = null;

});

  document.addEventListener("documentWriteDone", t.step_func_done(() => {

    assert_true(onLoadWasCalled, "onload must be called");

    assert_equals(iframe.contentDocument.body.textContent, "document.write body contents\n");

  }));

  iframe.src = "module-dynamic-import-iframe.html";

  document.body.appendChild(iframe);

});

</script>