Backport IE and tipsy bugfixes

This is a compilation of those commits:
2adf7a200886838ff0de5a8b4b61e3bfbbbf231a
184d59e2bfc59ab79fb8830c8a30e76b83518af7

Bug: 72516
Bug: 73337
Change-Id: I4cda3b508a16b7320ff367b269763aebd8949478
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/1005
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/996