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How to Fix the ‘Error: Permission denied to access property “x” ‘ Error in Our JavaScript App?

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Sometimes, we may run into the ‘Error: Permission denied to access property "x"’ when we’re developing JavaScript apps.

In this article, we’ll look at how to fix the ‘Error: Permission denied to access property "x"’ when we’re developing JavaScript apps.

Fix the ‘Error: Permission denied to access property "x"’ When Developing JavaScript Apps

To fix the ‘Error: Permission denied to access property "x"’ when we’re developing JavaScript apps, we should make sure we don’t try to access an object which we have no permission to access.

For instance, if we try to access an iframe’s document object as follows:

<!DOCTYPE html>
<html>
  <head>
    <iframe id="myframe" src="http://example.com"></iframe>
    <script>
      onload = function() {
        console.log(frames[0].document);
      }
    </script>
  </head>
  <body></body>
</html>

Then we may get this error since we have no permission to access an iframe’s document object in out JavaScript app.

The same-origin policy prevents us from accessing the iframe’s document object to prevent unauthorized access of an external document.

Conclusion

To fix the ‘Error: Permission denied to access property "x"’ when we’re developing JavaScript apps, we should make sure we don’t try to access an object which we have no permission to access.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

One reply on “How to Fix the ‘Error: Permission denied to access property “x” ‘ Error in Our JavaScript App?”

I don’t leave comments on blogs ever but this page is a waste of time.

“how to fix”

then instructed not to do. Stupid.

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