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PODealing with a very weird gChrome/Javascript problem
 

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    <p>I'm working on a Chrome Extension where I have to click on a <code>&lt;input type='file' /&gt;</code> in javascript, via jQuery, to get the "Save As" dialog to show up. Yes, I've been told - most browsers don't allow you to do this. However, I've discovered something very odd - I can click on an file-input element (and have the Save dialog pop-up) if I do it via the address bar, like this:</p> <pre><code>javascript: $("&lt;input type='file' /&gt;").appendTo("body").click(); </code></pre> <p>So, I figured that if I could do it there, then certainly I could do it from my content script...</p> <p>Obviously I was wrong. Running <code>$("&lt;input type='file' /&gt;").appendTo("body").click();</code> from my content script not only does zilch besides appending the element, but even emulating the address bar and doing <code>window.location = "javascript: $(\"&lt;input type='file' /&gt;\").appendTo(\"body\").focus().click();";</code> does zilch <em>as well.</em></p> <p>My initial thought was that maybe this was some kind of chrome restriction in content scripts, but I'm wrong - the extension <a href="https://chrome.google.com/webstore/detail/kmgmkbicahmbceidoidjbkbpkfogaldh" rel="nofollow">jsShell</a> which works via content script, is able to run the commands and get my desired results without a hitch.</p> <p>So, does anyone know why jsShell &amp; the browser can click the file-input and get a Save dialog, but my extension can't? I've tried taking jsShell apart and figuring implementing the way it works (though I don't see anything special about the way it works), but it's STILL not working. And the console isn't revealing anything - no errors, no warnings.</p> <p>This is making my head overheat, so any help is very appreciated!</p>
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    1. COSimilar questions: http://stackoverflow.com/questions/1829774/jquery-simulating-a-click-on-a-input-type-file-doesnt-work-in-firefox and http://stackoverflow.com/questions/2769001/input-type-file-auto-click
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