Error accessing contents of iFrame

Question

I am trying to load several links in a hidden iFrame, one after the other but an error occurs at this line

frame.contentDocument.getElementsByClassName('radiopad')[0].getElementsByTagName('input')[0].checked = true;

that states:

Uncaught TypeError: Cannot call method 'getElementsByTagName' of undefined

Essentially, I want to load a link in the iFrame, then fill the form on that page that loads in t and submit it(this code is tested and working) and then, once this has been completed, move on to doing the same thing with the next link. I am just currently not able to get the "document"(not sure if that is what is called) of the iFrame.

Here is my entire code snippet in case you need it.

frame = document.createElement('iframe');
frame.style.display = 'none'
document.body.appendChild(frame);
for (var i = 0; i < feedbackLinks.length; i++) {
    frame.setAttribute('src', feedbackLinks[i]);
    console.log(frame.contentDocument);
    while (frame.src != 'http://feedback.ebay.com/ws/eBayISAPI.dll') {
        frame.contentDocument.getElementsByClassName('radiopad')[0].getElementsByTagName('input')[0].checked = true;
        frame.contentDocument.getElementById('comment00').value = 'Great Seller';
        var starRatings = ['v4-15', 'v4-27', 'v4-32', 'v4-37'];
        for (var ID = 0; ID < starRatings.length; ID++) {
            if (frame.contentDocument.getElementById(starRatings[ID]) != null) {
                frame.contentDocument.getElementById(starRatings[ID]).click();
            }
        }
        frame.contentDocument.getElementById('but_formSave').click();
    }
    console.log("completed link " + (i + 1));
}

Thanks in advance :)

Probably can't do that due to cross-domain policy – zero298 Jan 20 '14 at 21:44 — zero298, Jan 20 '14 at 21:44

score 0 · Answer 1 · edited May 23 '17 at 11:56

0

I think your iframe points to different domain. You have same-domain policy violation.

The policy permits scripts running on pages originating from the same site.

Please read this wiki. It has extended answer to your problem.

edited May 23 '17 at 11:56

Community

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answered Jan 20 '14 at 21:53

vooD

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Is there any way I can get around this? Can I allow cross-domain access in the permissions in my manifest some how? – herteladrian Jan 20 '14 at 23:59
@user1702529 have a look at this wiki http://stackoverflow.com/questions/3076414/ways-to-circumvent-the-same-origin-policy – vooD Jan 21 '14 at 00:04
Can you provide me with code with which i can access the contents of the iFrame i am creating – herteladrian Jan 21 '14 at 03:30
@user1702529 do you have access to the server that iframe points to? – vooD Jan 21 '14 at 06:27
No I do not. I am loading ebay links in my iframe. Let me know if you need any more info – herteladrian Jan 21 '14 at 08:12
@user1702529 this is not possible then. Please read this answer http://stackoverflow.com/questions/3076414/ways-to-circumvent-the-same-origin-policy. What you are really trying to achieve? Maybe there is another way around. – vooD Jan 21 '14 at 08:32

Error accessing contents of iFrame

1 Answers1