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POChrome WebKitBlobBuilder doesn't append data
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  1. POChrome WebKitBlobBuilder doesn't append data
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    copied!<p>I'm implementing some file upload feature through ajax request. I'd like to be able to send multiple files in one ajax call, so i decided to use FormData.</p> <p>I tried to append my binary data string directly to the FormData (and it works), but the Content-Disposition doesn't have a filename attribute: Content-Disposition: form-data; name="file1"</p> <p>w3c says that i need to append a blob object to the formdata to have that attribute (or to be able to set it with the 3rd attribute of FormData.append())</p> <p>I wrote the following code:</p> <pre><code>function uploadAsBinary() { var xhr = new XMLHttpRequest(); var fd = new FormData(); window.BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder; var bb = new window.BlobBuilder(); bb.append("this is my binary content"); var blob = bb.getBlob("text/plain"); fd.append("file1", blob, "file1"); xhr.open("POST", "/mb/0/", false); xhr.send(fd); } </code></pre> <p>It works perfectly fine with firefox, but with google chrome (v16 and v17), the request payload is a formdata without content in it:</p> <pre><code>------WebKitFormBoundaryVkgESMAGtmPMlPZ7 Content-Disposition: form-data; name="file1"; filename="file1" Content-Type: text/plain ------WebKitFormBoundaryVkgESMAGtmPMlPZ7-- </code></pre> <p>I've also tried to fill the blob through an ArrayBuffer, same result. I've been surfing the web for 2 days now, i've found no answer. I've found an open issue on android (http://code.google.com/p/android/issues/detail?id=22441) but it seems quite dead.</p> <p>Is this a real chrome issue ? Does someone have a clue about this, or should i open an issue on chromium tracker ?</p> <p>Thx for your help !</p>
 

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