'Load denied by X-Frame-Options' error and 'SCRIPT5: Access is denied' error

I am totally stumped on this and would appreciate some help.

I have a page that works fine on most computers. However some users are experiencing issues regarding cross-domain requests it seems. I am completely unable to recreate the issue myself (except by accessing the site via web proxy).

There are no iframes on the page (except for adsense). The page is built with Angularjs but I don't think that is relevant. There is an ajax request (to the same domain).

I asked some users to paste the errors from the console and this is what they had:

From latest Chrome:

SCRIPT5: Access is denied.
File: container.html, Line: 1, Column: 1
SCRIPT5: Access is denied.
File: container.html, Line: 1, Column: 1
SCRIPT5: Access is denied.
File: jetpack-comment, Line: 1, Column: 1

And from Firefox:

Error: Permission denied to access property "toString" <unknown>
The Components object is deprecated. It will soon be removed. loaded.js:4:0
Bubble Analytics Array [ <1 empty slot> ] loaded.js:4:12347
Error: Permission denied to access property "toString" <unknown>
Load denied by X-Frame-Options: http://ift.tt/1R2Tq4l does not permit framing by http://ift.tt/1ML2r2p. <unknown>
Load denied by X-Frame-Options: http://ift.tt/1R2TpNL does not permit framing by http://ift.tt/1ML2r2p. <unknown>
Load denied by X-Frame-Options: http://ift.tt/1OqPLOE does not permit framing by http://ift.tt/1ML2r2p. <unknown>
Error: [$injector:modulerr] http://ift.tt/1R2Tq4n.
....angular.min.js:6:422

This is the page: http://ift.tt/1ML2r2p

Any ideas or pointers?