JQuery Selectors on Gmailr 'body' and 'canvas' objects

[JohnYangSam]

In main.js:
When trying to access the Gmailr 'body' and 'canvas' objects, it seems that they are only responsive to JQuery calls $("tagname", [object]). Selecting by class or id doesn't seem to return any elements for known id's or classes. Standard Javascript DOM traversal also doesn't seem to work on the objects.

I have been able to reach the DOM using notations such as:

top.document.getElementsByTagName("iframe")[4].contentDocument;

I may just need to dig deeper into the library, but has anyone else found similar issues?

Also, this may take more digging, but I can't seem to find where top is explicitly declared (I was hoping maybe it could be used to add the support for standard Javascript DOM traversal to the Gmailr object.