speculative-script.tentative.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/syntax/speculative-charset/speculative-script.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<meta charset="windows-1253">

<title>Speculative script</title>

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

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

<script src=/common/utils.js></script>

<body>

<script>

const uuid = token();

window.onmessage = function(e) {

  // The script is first speculatively loaded in the windows-1253 context (inherited from this doc), so

  // the Greek hex NCR turns into a byte. This byte is stored. Then the script is fetched

  // non-speculatively, because the Greek hexNCR in the URL makes the URL not match in the

  // windows-1251 context. Now the Greek hex NCR turns in to a decimal NCR and the original Greek

  // character comes back as a byte that gets a Cyrillic interpretation.

  assert_equals(e.data, `token: ${uuid}, character: &#950;, previous character: \u0436, byte: \u0436`, "Check result");

  done();

setup({single_test: true});

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

iframe.src = `support/speculative-script.py?uuid=${uuid}`;

document.body.appendChild(iframe);

</script>