blob-response-type-warm-cache.html | Explore in Territory

<body>
<pre id="console"></pre>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}

function log(msg) {
    document.getElementById('console').appendChild(document.createTextNode(msg + "\n"));
}

function readBlob(blob, cb) {
    var reader = new FileReader();
    reader.onload = function() {
        cb(this.result);
    };
    reader.readAsText(blob);
}

// Do a synchronous XHR to populate the Blink in-memory cache. (Asynchronous
// XHRs currently get evicted on completion.)
var syncxhr = new XMLHttpRequest();
syncxhr.open("GET", "resources/get.txt", false);
syncxhr.send();
log(syncxhr.responseText);

// Download the same resource again, but as a Blob.
var asyncxhr = new XMLHttpRequest();
asyncxhr.open("GET", "resources/get.txt", true);
asyncxhr.responseType = 'blob'
asyncxhr.onload = function() {
    readBlob(this.response, function(text) {
        log(text);
        if (window.testRunner)
            testRunner.notifyDone();
    });
};
asyncxhr.send();

</script>
</body>

chromium/third_party/blink/web_tests/http/tests/xmlhttprequest/blob-response-type-warm-cache.html