<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Request clone</title>
    <meta name="help" href="https://fetch.spec.whatwg.org/#request">
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
  </head>
  <body>
    <script src="/common/get-host-info.sub.js"></script>
    <script>

function testResponseOpacity(response, test, testName)
{
    assert_equals(response.type, "opaque", testName + " type");
    assert_equals(response.status, 0, testName + " status");
    assert_equals(response.statusText, "", testName + " statusText");
    assert_false(response.redirected, testName + " redirected");
    assert_true(response.headers.values().next().done, testName + " headers");
    assert_equals(response.body, null, testName + " opaque response body should be null");
}
promise_test(async function(test) {
    var request = new Request(get_host_info().HTTP_REMOTE_ORIGIN, { mode: "no-cors" });
    var response = await fetch(request);

    testResponseOpacity(response, test, "fetched response");

    var clone = response.clone();

    testResponseOpacity(clone, test, "cloned response");
    var buffer = await clone.arrayBuffer();
    assert_equals(buffer.byteLength, 0, "cloned opaque response buffer should be null");

    // WK1 does not support Cache API yet.
    if (!self.caches)
        return;

    var cache = await self.caches.open("test");
    await cache.put(request, response);
    var cached = await cache.match(request.url);

    testResponseOpacity(cached, test,  "cached response")
    buffer = await cached.arrayBuffer();
    assert_equals(buffer.byteLength, 0, "cached opaque response buffer should be null");

    await self.caches.delete("test");
}, "Check opaque response can be cloned and cached correctly");
    </script>
  </body>
</html>