Invoking JavaScript code in an iframe from the parent page

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Assume your iFrame’s id is “targetFrame” and the function you want to call is targetFunction():

document.getElementById('targetFrame').contentWindow.targetFunction();

You can also access the frame using window.frames instead of document.getElementById.

// this option does not work in most of latest versions of chrome and Firefox
window.frames[0].frameElement.contentWindow.targetFunction();

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