HTML | DOM Navigator taintEnabled() Method
Last Updated :
19 Feb, 2019
The Navigator taintEnabled() method was best avoided in JavaScript version 1.2, and has been deprecated since then to prevent run-time errors in the future. Data Tainting was a security feature to destroy or remove the highly infectious data used by JavaScript 1.2. It has been completely discarded by now; this method only available for maintaining compatibility with very old scripts with limited browser support. It returns a Boolean value that shows whether the browser has data tainting method enabled. The NavigatorID.taintEnabled() method would always returns Boolean false value.
Syntax:
window.navigator.taintEnabled()
Return Value:
It returns a Boolean value, specifying whether the browser has data tainting feature enabled.
Example: It would return true if data tainting is supported and enabled, and it returns false if the feature is disabled.
<!DOCTYPE html>
<html>
<head>
<title>
HTML DOM Navigator taintEnabled() Method
</title>
</head>
<body>
<h1>GeeksforGeeks</h1>
<h2>HTML DOM Navigator taintEnabled() Method
</h2>
<p id="geeks"
onclick="functionGFG()">
Welcome to GeeksforGeeks!
</p>
<input type="button"
value="Is data tainting in my browser enabled?"
onClick="functionGFG()">
<script language="JavaScript">
function functionGFG() {
// data tainting is enabled or not.
var temp = navigator.taintEnabled();
alert(window.navigator.taintEnabled());
}
</script>
</body>
</html>
|
Output:
Before Click:
After Click:
Supported Browsers:
This method has long been deprecated and beware before using it because at anytime it may be withdrawn. Despite being removed it is supported by the following browsers:
- Opera 3.5
- Internet Explorer 4.0/Edge.
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