Home/ Questions/Blocked a frame with origin from accessing a cross origin frame- How can I circumvent the error?
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Lou Foulon
  • 25
Asked: 2022-05-12T10:37:02+00:00 In:

Blocked a frame with origin from accessing a cross origin frame- How can I circumvent the error?

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I get the error: blocked a frame with origin from accessing a cross origin frame when I try to run the program below:

$(document).ready(function() {
  var iframeWindow = document.getElementById("my-iframe-id").contentWindow;
 
  iframeWindow.addEventListener("load", function() {
  var doc = iframe.contentDocument || iframe.contentWindow.document;
  var target = doc.getElementById("my-target-id");
 
  target.innerHTML = "Found it!";
  });
 });

The error appears the system notifies as follows:

SecurityError: Blocked a frame with origin "http://www.<domain>.com" from accessing a cross-origin frame.

I tried to solve it with another sample. I got the reference in the community forum, but it still returned an invalid result. If someone knows the solution, please give me the support. Thanks!

blocked a frame
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2 Answers

  1. Best Answer
    Expert

    The cause: You cannot access a <iframe> of a different origin using JavaScript. This would be a serious security problem. The same origin policy browsers blocks scripts trying access a frame with an alternative origin.

    Solution:

    If at least one of these parts of an address isn’t maintained, origin is considered to be different

    protocol://hostname:port/...

    If you wish to access a frame, the protocol, hostname, and port must match your domain.

    • 18

  2. Marco Bonelli’s response is complete. The best way to interact between frames/iframes at the moment is using window.postMessage. This support browsers.

    • 23

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