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POiframe transport isn't transferring any data
 

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    <p>I'm using <a href="https://github.com/blueimp/jQuery-File-Upload/" rel="nofollow">jQuery-File-Upload</a> with <a href="http://cmlenz.github.com/jquery-iframe-transport/" rel="nofollow">jQuery-Iframe-Transport</a> to try to get support for older versions of IE.</p> <p>I've set the <a href="https://github.com/blueimp/jQuery-File-Upload/wiki/Options" rel="nofollow"><code>forceIframeTransport</code></a> option to <code>true</code> so that it behaves more or less the same way in all browsers, but I don't seem to get any data back on the server-side regardless of browser when it uses the iframe transport.</p> <p>I've spat out the request headers server-side and I get back:</p> <pre><code>array( Host =&gt; "*******" Connection =&gt; "keep-alive" Content-Length =&gt; "0" Accept =&gt; "*/*" Origin =&gt; "**************" X-Requested-With =&gt; "XMLHttpRequest" User-Agent =&gt; "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.57 Safari/537.17" DNT =&gt; "1" Referer =&gt; "***********" Accept-Encoding =&gt; "gzip,deflate,sdch" Accept-Language =&gt; "en-GB,en-US;q=0.8,en;q=0.6" Accept-Charset =&gt; "ISO-8859-1,utf-8;q=0.7,*;q=0.3" Cookie =&gt; "*********" ) </code></pre> <p>[<code>*****</code>s indicated bleeped out info; you don't need that ;)]</p> <p>Which look OK, but <code>$_REQUEST</code> is empty (i.e., <code>array()</code>), and the input buffer is empty too:</p> <pre><code>$handle = fopen('php://input', 'r'); $file_data = ''; while(($buffer = fgets($handle, 4096)) !== false) { $file_data .= $buffer; } fclose($handle); // $file_data = ''; </code></pre> <p>This all worked fine when I wasn't using the iframe-transport but I need IE support... does anyone have any experience with transmitting files using iframes and might know why no data is coming through?</p> <hr> <p>When I use <a href="https://github.com/blueimp/jQuery-File-Upload/blob/master/js/jquery.iframe-transport.js" rel="nofollow">jQuery-File-Upload / js / jquery.iframe-transport.js</a> and force iframe transport it works in Chrome, but the requests don't even make it to the server in IE. </p> <p>When I use <a href="https://github.com/cmlenz/jquery-iframe-transport/blob/master/jquery.iframe-transport.js" rel="nofollow">jquery-iframe-transport / jquery.iframe-transport.js</a> and force iframe transport it breaks in Chrome, but that's fine because Chrome supports proper XHR file transfers, <em>and</em> the requests at least hit the server in IE <em>but</em> no data comes through.</p> <p>I've updated my script to support either transfer method:</p> <pre><code>if(empty($_FILES)) { $handle = fopen('php://input', 'r'); $file_data = ''; while(($buffer = fgets($handle, 4096)) !== false) { $file_data .= $buffer; } fclose($handle); } else { $file_data = file_get_contents($_FILES['files']['tmp_name'][0]); } </code></pre> <p>But again, I still can't seem to get any data in IE regardless of what I do.</p> <p>When I say "IE", I'm specifically testing in IE 8 right now. I need support back to 7 though. <a href="http://cmlenz.github.com/jquery-iframe-transport/" rel="nofollow">This guy</a> claims support all the way back to IE 6.</p>
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