Use top page document to show the pop-up

[giuseppe-palmeri]

jquery-confirm version: v3.x.x

I'm submitting a ... (check one with "x") [ ] bug report [ X] feature request [ ] support request

This is a project that is really becoming useful to me. :) Really well done and taken care of. I wish I could give this suggestion if possible.

Current behavior: If used in a page into an iframe, it compare into the iframe.

Expected behavior: I would it compare into the father or top page document when possible. When this is not possible an error message or into the current page.

Alternatively, make sure you can directly specify the document to be used.

Other information: This behavior would be modified with a config flag. Es: "useTopPageDocument": true Or "renderingOn": father.document

Thank you!