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    <p>The problem is that <code>BlobBuilder.append(xhr.responseText)</code> is detecting its argument as a UTF-8 string, which is what XHR returns, and not binary data, which is what it really is. There's a couple of tricks to get the BlobBuilder reading it as binary data instead of string data:</p> <pre><code>var xhr = new XMLHttpRequest(); var photoOrigUrl = 'http://www.google.ru/images/nav_logo72.png'; xhr.open('GET', photoOrigUrl, true); // CHANGE 1: This stops the browser from parsing the data as UTF-8: xhr.overrideMimeType('text/plain; charset=x-user-defined'); xhr.onreadystatechange = function() { if (xhr.readyState == 4 &amp;&amp; xhr.status == 200) { var contentType = xhr.getResponseHeader('Content-type'); fsLink.root.getFile('nav_logo72.png', {'create': true}, function(fileEntry) { fileEntry.createWriter(function(fileWriter) { // CHANGE 2: convert string object into a binary object var byteArray = new Uint8Array(xhr.response.length); for (var i = 0; i &lt; xhr.response.length; i++) { byteArray[i] = xhr.response.charCodeAt(i) &amp; 0xff; } var BlobBuilderObj = new (window.BlobBuilder || window.WebKitBlobBuilder)(); // CHANGE 3: Pass the BlobBuilder an ArrayBuffer instead of a string BlobBuilderObj.append(byteArray.buffer); // CHANGE 4: not sure if it's needed, but keep only the necessary // part of the Internet Media Type string fileWriter.write(BlobBuilderObj.getBlob(contentType.split(";")[0])); }, function(resultError) { console.log('writing file to file system failed ( code ' + resultError.code + ')'); }); }); } } xhr.send(); </code></pre> <p>This gave me a file with the same length as what <code>xhr.getResponseHeader('Content-Length')</code> suggests it should have been.</p>
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    1. COAlso, remember to accept answers when you think they're correct ;)
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    2. COStolve, you're the MAN!!! You made my day! Many thanks to you! The only thing i don't understand is overriding mimetype with this "text/plain; charset=x-user-defined". I've always thought that one can specify the needed response mimetype here, but why should we put here "text/plain"?
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    3. COGlad to help :). That line is just telling the browser not to do anything smart with the data the request returns - otherwise it'll always try and turn it into text, with the text encoding of the current page (I think...). Possibly a historical thing, since XHR was previously only used for "text/xml" or "application/xml", at a guess.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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