Iframe stripping URL arguments

I have the following code:

<iframe width="500px" height="500px" name="myframe"></iframe>
<form action="http://ift.tt/1SxOOGs" method="get" target="myframe">
    <input type="submit" />
</form>

However, the request strips ?id=1&arg=5, and makes a request to http://ift.tt/1eeEnPI? instead. Is it possible to do this with the iframe?