workers/shared-worker-options-mismatch.html

<!DOCTYPE html>
<title>SharedWorker: type or credentials mismatch failure</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>

const mismatch_test = (testName, firstOptions, secondOptions) => {
  promise_test(async () => {
    firstOptions.name = testName;
    secondOptions.name = testName;
    const scriptURL = 'support/empty-worker.js';
    const firstWorker = new SharedWorker(scriptURL, firstOptions);
    const secondWorker = new SharedWorker(scriptURL, secondOptions);
    return new Promise(resolve => secondWorker.onerror = resolve);
  }, 'Connecting to shared worker with different options should be blocked: '
  + testName);
};

// Tests different type.
mismatch_test('default to module', {}, { type: 'module' });
mismatch_test('module to default', { type: 'module' }, {});
mismatch_test('classic to module', { type: 'classic' }, { type: 'module' });
mismatch_test('module to classic', { type: 'module' }, { type: 'classic' });

// Tests different credentials in classic and module.
['classic', 'module'].forEach(type => {
  mismatch_test('default to omit in ' + type,
                { type },
                { type, credentials: 'omit' });
  mismatch_test('default to include in ' + type,
                { type },
                { type, credentials: 'include' });
  mismatch_test('omit to default in ' + type,
                { type, credentials: 'omit' },
                { type });
  mismatch_test('omit to same-origin in ' + type,
                { type, credentials: 'omit' },
                { type, credentials: 'same-origin' });
  mismatch_test('omit to include in ' + type,
                { type, credentials: 'omit' },
                { type, credentials: 'include' });
  mismatch_test('same-origin to omit in ' + type,
                { type, credentials: 'same-origin'},
                { type, credentials: 'omit' });
  mismatch_test('same-origin to include in ' + type,
                { type, credentials: 'same-origin'},
                { type, credentials: 'include' });
  mismatch_test('include to default in ' + type,
                { type, credentials: 'include' },
                { type });
  mismatch_test('include to omit in ' + type,
                { type, credentials: 'include' },
                { type, credentials: 'omit' });
  mismatch_test('include to same-origin in ' + type,
                { type, credentials: 'include' },
                { type, credentials: 'same-origin' });
});

</script>