After you install either of the following security updates, when you remove an iframe element that contains a PDF object on Document Object Model (DOM) in Internet Explorer 11, PDF viewer freezes and the whole browser content page gets blank.
On Windows 7 Service Pack 1 (SP1), Windows Server 2008 R2 SP1:
October 2016 security monthly quality rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB3185330)
On Windows 8.1, or Windows Server 2012 R2:
October 2016 security monthly quality rollup for Windows 8.1 and Windows Server 2012 R2 (KB3185331)
To fix this issue, install the most recent cumulative security update for Internet Explorer. To do this, go to Microsoft Update. Additionally, see the technical information about the most recent cumulative security update for Internet Explorer.
Note This update was first included inthe MS17-006: Description of the security update for Internet Explorer: March 14, 2017.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology that Microsoft uses to describe software updates.