blocked a frame of origin “null” from accessing a cross-origin frame - chrome

Question

I\'m new to Javascript and am learning the basics via a textbook that focuses on its applications in IE 7+ and Firefox 2+. However, I am using Chrome and am getting the foll

Answer 1

If you don't want to use a local web server as suggested in the accepted answer you can run the browser with cross domain web security / same origin policy disabled.

For Chrome:

Disable same origin policy in Chrome

For Firefox:

Disable cross domain web security in Firefox

https://addons.mozilla.org/en-US/firefox/addon/access-control-allow-origin/

Disable firefox same origin policy

Answer 2

This happens because Chrome doesn't allow frames from your hard disk to access each others' content. Which, technically we term as Cross-origin request.

Solution of the above problem is:

1. Either you host your webpage on a local web server. See the following link:
What is a faster alternative to Python's http.server (or SimpleHTTPServer)?

2. Use any other browser like Firefox