iframe-error-status-fires-load.html

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This test has a WPT meta file that expects 2 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/the-iframe-element/iframe-error-status-fires-load.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>iframe with error HTTP status should fire load event</title>

<link rel="help" href="https://html.spec.whatwg.org/multipage/iframe-embed-object.html#the-iframe-element">

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

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

<body>

<script>

"use strict";

async_test(t => {

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

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

    assert_true(true, "load event should fire for 404 response");

    assert_true(Boolean(iframe.contentDocument), "iframe should have a contentDocument");

});

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

    assert_unreached("error event should not fire for 404 response");

});

  iframe.src = "/common/blank.html?pipe=status(404)";

  document.body.append(iframe);

}, "iframe should fire load event for 404 response and display error page");

async_test(t => {

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

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

    assert_true(true, "load event should fire for 503 response");

    assert_true(Boolean(iframe.contentDocument), "iframe should have a contentDocument");

});

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

    assert_unreached("error event should not fire for 503 response");

});

  iframe.src = "/common/blank.html?pipe=status(503)";

  document.body.append(iframe);

}, "iframe should fire load event for 503 response and display error page");

</script>

</body>