iframe-coep-redirect.https.window.js

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This WPT test may be referenced by the following Test IDs:
- /html/cross-origin-embedder-policy/credentialless/iframe-coep-redirect.https.window.html?1-4 - WPT Dashboard Interop Dashboard
- /html/cross-origin-embedder-policy/credentialless/iframe-coep-redirect.https.window.html?5-last - WPT Dashboard Interop Dashboard

// META: variant=?1-4

// META: variant=?5-last

// META: script=/common/get-host-info.sub.js

// META: script=/common/utils.js

// META: script=/common/dispatcher/dispatcher.js

// META: script=./resources/common.js

// META: script=./resources/iframeTest.js

promise_test(async test => {

  const test_token = token();

  const child_token = token();

  const redirecting_child_url = cross_origin + "/common/dispatcher/executor.html?uuid=" + child_token;

  const child_url =

    same_origin +

    "/html/cross-origin-embedder-policy/credentialless/resources/redirect_none_to_credentialless.py?redirectTo=" + redirecting_child_url;

  await send(newWindow(coep_credentialless), `

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

    iframe.src = "${child_url}";

    document.body.appendChild(iframe);

`);

  await send(child_token, `

    send("${test_token}", "load");

`);

  // There are no interoperable ways to check an iframe failed to load. So a

  // timeout is being used.

  // See https://github.com/whatwg/html/issues/125

  // Use a shorter timeout when it is expected to be reached.

  // - The long delay reduces the false-positive rate. False-positive causes

  //   stability problems on bot, so a big delay is used to vanish them.

  //   https://crbug.com/1215956.

  // - The short delay avoids delaying too much the test(s) for nothing and

  //   timing out. False-negative are not a problem, they just need not to

  //   overwhelm the true-negative, which is trivial to get.

  step_timeout(()=>send(test_token, "block"), 6000);

  assert_equals(await receive(test_token), EXPECT_LOAD);

});