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Editorial Team
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Asked: 2026-06-15T02:31:01+00:00

I have a sample code: in index.html <!DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN

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I have a sample code:
in index.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns:fb="http://ogp.me/ns/fb#">
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
<title>index</title>  
</head>  
<body>
<input type="text" value="" name="test" id="text_input">
<iframe src="iframe.html">
</body> 
</html>

And iframe.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns:fb="http://ogp.me/ns/fb#">
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
<title>iframe</title>  
<script>
function getValue(text) {
    document.getElementById('text_input').value = text;
}
</script>
</head>  
<body>
<a href="#" onclick="getValue('test');">Click</a>
</body> 
</html>

When click on a tag, value “text” can not be passed on from iframe to index.html, how to fix it ?

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1 Answer

  1. Editorial Team

    Use parent to get parent window of iframe. Try this

    function getValue(text) {
    parent.document.getElementById('text_input').value = text;
}
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