CODEWITHSUNDEEP
javascript
Karthikeyan
Karthikeyan

Reputation: 1

Running Javascript on top of window.open() window

Say I am opening a webpage (www.facebook.com) by passing the url to window.open() function. My window opens as a new browser since I have used "_blank" in window.open() function.

I want to run my own javascript on the newly opened window. When I researched, found some solution which I have added in my source code as posted below. But unfortunately my javascript is not working on the newly opened window. Could someone help me in this ?

<!DOCTYPE html>
<html>
<head>
<script>

	function myFunction() {
		var url = document.getElementById("myText").value
		var newWindow = window.open(url,'_blank','height=400,width=600,left=10,top=10,scrollbars=yes,menubar=yes,titlebar=yes')
		var newScript = newWindow.document.createElement('script');
		//console.log(newScript);
		newScript.setAttribute('type','text/javascript');
		newScript.setAttribute('src','C:/Users/30216/Desktop/jquery_edited_new1.js');
		newWindow.document.getElementsByTagName("head")[0].appendChild(newScript);
		//console.log(newWindow);
		//newWindow.document.head.appendChild(newScript);
		
}
		
</script>
</head>
<body>
<table align = "center">
<frame>
<tr>
	<td class="url">Enter the URL:</td>
	<td>
		<input type="text" id="myText"></input>
	</td>
</tr>
<tr>
	<td>
		<button id="browser_open" onclick = "myFunction()">Submit</button>
	</td>
</tr>
</frame>

</body>
</html>

Upvotes: 0

Views: 480

Answers (1)

idmean
idmean

Reputation: 14865

You can only access the document according to the Same-Origin-Policy.

If you open another web page like Facebook and the webpage that opened facebook.com does not use the same domain, protocol and port it will not be able to access the document of that page.

Imagine what you could do if you without this policy. E.g. you would be able to open Facebook, secretly install a key logger and tell the user to log in.

Upvotes: 1

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