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PODownloading files using html5 blobs in a chrome-extension
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11519469
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2012-07-17T09:18:03.103
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2017-05-23T12:31:52.943
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Body
Im trying to achieve the same goal as OP there: <a href="https://stackoverflow.com/questions/6165266/downloading-mp3-files-using-html5-blobs-in-a-chrome-extension/11518906#11518906">Downloading mp3 files using html5 blobs in a chrome-extension</a> but not the him's code, not the solution offered in discussion does not work for my google-chrome 19.0.1084.46. Im working in chrome-console on the local (file://) page, and errors for this code: <pre><code>finalUrl = "http://cs1076.userapi.com/u3040678/audio/d7ff6874cfa4.mp3"; var xhr = new XMLHttpRequest(); xhr.open("GET", finalURL, true); xhr.setRequestHeader('Content-Type', 'octet-stream'); xhr.setRequestHeader('Access-Control-Allow-Origin', '*'); xhr.onreadystatechange = function() { if(xhr.readyState == 4 && xhr.status == 200) { var bb = new (window.BlobBuilder || window.WebKitBlobBuilder)(); bb.append(xhr.responseText); var blob = bb.getBlob("application/octet-stream"); var saveas = document.createElement("iframe"); saveas.style.display = "none"; saveas.src = window.webkitURL.createObjectURL(blob); document.body.appendChild(saveas); delete xhr; delete blob; delete bb; } } xhr.send(); </code></pre> looks like <blockquote> OPTIONS <a href="http://cs1076.userapi.com/u3040678/audio/d7ff6874cfa4.mp3" rel="nofollow noreferrer">http://cs1076.userapi.com/u3040678/audio/d7ff6874cfa4.mp3</a> 405 (Not Allowed) cs1076.userapi.com/u3040678/audio/d7ff6874cfa4.mp3:1 XMLHttpRequest cannot load <a href="http://cs1076.userapi.com/u3040678/audio/d7ff6874cfa4.mp3" rel="nofollow noreferrer">http://cs1076.userapi.com/u3040678/audio/d7ff6874cfa4.mp3</a>. Origin null is not allowed by Access-Control-Allow-Origin. </blockquote> And the second subquestion: in according to <a href="https://stackoverflow.com/questions/6175421/how-can-i-generate-a-file-and-offer-it-for-download-in-plain-javascript/11518859#11518859">How can i generate a file and offer it for download in plain javascript?</a> - is the creation of iframe the best way to offer file to download?
Tags
<javascript><html5><google-chrome-extension><blob>
Title
Downloading files using html5 blobs in a chrome-extension
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