Maybe it is not a proper way to create object with null prototype with using Iframe

[aleen42]

Recently, I have found that when I used IE11 to simulate IE8, and required core-js/stable in an iframe, it throwed an error specifiying that iframe.contentWindow was not asscessible when the script was run in an iframe, where scripts were not allowed to execute.

I set the iframe with sandbox="allow-scripts", but it seemed that IE 11 did not acted like what I expected. In true IE8, sandbox is not worked, and there is no problem when accessing iframe.contentWindow. Therefore, is there any alternative to create Object with null prototype without using iframe?

[zloirock]

Could you propose a better alternative? I don't see anything.

[zloirock]

We could try to add a ActiveXObject-based workaround, es-shims/es5-shim#150.

[zloirock]

You could play with it and add a PR.

[aleen42]

OK, I'll try it later and create a PR for it