I get an undefine error in iframe

Question

I have an iframe below: ``` ``` I am trying to stop a command below but I keep getting an undefined error: ``` $('.upload_target').contentwindow is undefined ``` How can I fix this undefined error? Below is code: ``` $(".uploadbutton").click(function() { $(".upload_target").contentWindow.stop(); //for anything but IE $(".upload_target").contentWindow.document.execCommand("Stop"); // for IE return stopImageUpload(); ``` });

Accepted Answer

You get `undefined` because `contentWindow` is native Javascript and you're using it on a jQuery collection, which doesn't have `contentWindow` as a value. You have to get the original DOM object first. Do this instead:

```
$('.upload_target').get(0).contentWindow
```

I get an undefine error in iframe

Solution

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