Created
February 19, 2015 14:39
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Data URL to Blob in JavaScript
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| // source: https://github.com/ebidel/filer.js/blob/b7ab6f4cbb82a17565ff68227e5bc984a9934038/src/filer.js#L137-159 | |
| var dataURLToBlob = function(dataURL) | |
| { | |
| var BASE64_MARKER = ";base64,"; | |
| if (dataURL.indexOf(BASE64_MARKER) == -1) | |
| { | |
| var parts = dataURL.split(","); | |
| var contentType = parts[0].split(":")[1]; | |
| var raw = decodeURIComponent(parts[1]); | |
| return new Blob([raw], {type: contentType}); | |
| } | |
| var parts = dataURL.split(BASE64_MARKER); | |
| var contentType = parts[0].split(":")[1]; | |
| var raw = window.atob(parts[1]); | |
| var rawLength = raw.length; | |
| var uInt8Array = new Uint8Array(rawLength); | |
| for (var i = 0; i < rawLength; ++i) { | |
| uInt8Array[i] = raw.charCodeAt(i); | |
| } | |
| return new Blob([uInt8Array], {type: contentType}); | |
| } |
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