Blocked a frame with origin "null" from accessing a cross-origin frame

[AndyBraveMX]

There is an issue trying to use the example.

Uncaught DOMException: Blocked a frame with origin "null" from accessing a cross-origin frame.
    at HTMLIFrameElement.iframe.onload (/javascript-development/reveal.js/node_modules/reveal.js-d3js/d3js.js:38:42)

I have read this post: https://stackoverflow.com/questions/25098021/securityerror-blocked-a-frame-with-origin-from-accessing-a-cross-origin-frame

and this:

https://stackoverflow.com/questions/3102819/disable-same-origin-policy-in-chrome
In order to run the program.
However I think it could be a potential security bug.

What do you suggest to fix them without change the browser behavior?

[digitallamb]

That issue only occurs when you're trying to load the javascript from the file system, it wont happen when the site is hosted. In the short term in order to debug locally you can use python to fire up a simple webserver in the current directory: python -m SimpleHTTPServer and browse to localhost:8000

And for security's sake, you'll probably want to re-enable the same origin policy in Chrome.