url-in-tags-revoke.window.js

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This WPT test may be referenced by the following Test IDs:
- /FileAPI/url/url-in-tags-revoke.window.html - WPT Dashboard Interop Dashboard

// META: timeout=long

async_test(t => {

  const run_result = 'test_frame_OK';

  const blob_contents = '<!doctype html>\n<meta charset="utf-8">\n' +

    '<script>window.test_result = "' + run_result + '";</script>';

  const blob = new Blob([blob_contents], {type: 'text/html'});

  const url = URL.createObjectURL(blob);

  const frame = document.createElement('iframe');

  frame.setAttribute('src', url);

  frame.setAttribute('style', 'display:none;');

  document.body.appendChild(frame);

  URL.revokeObjectURL(url);

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

    assert_equals(frame.contentWindow.test_result, run_result);

});

}, 'Fetching a blob URL immediately before revoking it works in an iframe.');

async_test(t => {

  const run_result = 'test_frame_OK';

  const blob_contents = '<!doctype html>\n<meta charset="utf-8">\n' +

    '<script>window.test_result = "' + run_result + '";</script>';

  const blob = new Blob([blob_contents], {type: 'text/html'});

  const url = URL.createObjectURL(blob);

  const frame = document.createElement('iframe');

  frame.setAttribute('src', '/common/blank.html');

  frame.setAttribute('style', 'display:none;');

  document.body.appendChild(frame);

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

    frame.contentWindow.location = url;

    URL.revokeObjectURL(url);

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

      assert_equals(frame.contentWindow.test_result, run_result);

});

});

}, 'Fetching a blob URL immediately before revoking it works in an iframe navigation.');

async_test(t => {

  const run_result = 'test_frame_OK';

  const blob_contents = '<!doctype html>\n<meta charset="utf-8">\n' +

    '<script>window.test_result = "' + run_result + '";</script>';

  const blob = new Blob([blob_contents], {type: 'text/html'});

  const url = URL.createObjectURL(blob);

  const win = window.open(url);

  URL.revokeObjectURL(url);

  add_completion_callback(() => { win.close(); });

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

    assert_equals(win.test_result, run_result);

});

}, 'Opening a blob URL in a new window immediately before revoking it works.');

function receive_message_on_channel(t, channel_name) {

  const channel = new BroadcastChannel(channel_name);

  return new Promise(resolve => {

    channel.addEventListener('message', t.step_func(e => {

      resolve(e.data);

    }));

});

function window_contents_for_channel(channel_name) {

  return '<!doctype html>\n' +

    '<script>\n' +

    'new BroadcastChannel("' + channel_name + '").postMessage("foobar");\n' +

    'self.close();\n' +

    '</script>';

async_test(t => {

  const channel_name = 'noopener-window-test';

  const blob = new Blob([window_contents_for_channel(channel_name)], {type: 'text/html'});

  receive_message_on_channel(t, channel_name).then(t.step_func_done(t => {

    assert_equals(t, 'foobar');

  }));

  const url = URL.createObjectURL(blob);

  const win = window.open();

  win.opener = null;

  win.location = url;

  URL.revokeObjectURL(url);

}, 'Opening a blob URL in a noopener about:blank window immediately before revoking it works.');

async_test(t => {

  const run_result = 'test_script_OK';

  const blob_contents = 'window.script_test_result = "' + run_result + '";';

  const blob = new Blob([blob_contents]);

  const url = URL.createObjectURL(blob);

  const e = document.createElement('script');

  e.setAttribute('src', url);

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

    assert_equals(window.script_test_result, run_result);

});

  document.body.appendChild(e);

  URL.revokeObjectURL(url);

}, 'Fetching a blob URL immediately before revoking it works in <script> tags.');

async_test(t => {

  const channel_name = 'a-click-test';

  const blob = new Blob([window_contents_for_channel(channel_name)], {type: 'text/html'});

  receive_message_on_channel(t, channel_name).then(t.step_func_done(t => {

    assert_equals(t, 'foobar');

  }));

  const url = URL.createObjectURL(blob);

  const anchor = document.createElement('a');

  anchor.href = url;

  anchor.target = '_blank';

  document.body.appendChild(anchor);

  anchor.click();

  URL.revokeObjectURL(url);

}, 'Opening a blob URL in a new window by clicking an <a> tag works immediately before revoking the URL.');