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HTML DOM revokeObjectURL() method
  • Last Updated : 14 Jul, 2020

The URL revokeObjectURL() method releases an existing object URL which was created by using URL createObjectURL(). This method is called when you are finished using an object URL and don’t want the browser to keep the reference to that file any longer.

Syntax:

URL.revokeObjectURL(objectURL);

Parameters:

  • objectURL: A DOMString object URL to be released.

Return Value: This method has no return value.

Example: In this example, create an objectURL using createObjectURL() method and then revoked it.



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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>URL.revokeObjectURL example</title>
</head>
<body>
  <h1>GeeksforGeeks</h1>
  <input type="file">
  <img>
  <p class="p">The URL of this image is : </p>
</body>
<script>
    var Element = document.querySelector('input');
    var img = document.querySelector('img');
    Element.addEventListener('change', function() {
      var url = URL.createObjectURL(Element.files[0]);
      img.src = url;
      console.log(url);
      URL.revokeObjectURL(url)
      var d=document.querySelector(".p");
      d.textContent+=url;
});
</script>
</html>

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Output:

Before Choosing Image:

After Choosing Image: In the console, an error can be seen that “Not allowed to load local resource” as the URL is revoked.

Checking the Object URL will also give “File not found”:

Supported Browsers:

  • Google Chrome
  • Edge
  • Firefox
  • Safari
  • Opera
  • Internet Explorer

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