Address ridiculous IE bug w/ dynamically changing data attributes

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Short version: IE doesn't do a redraw when data- attributes change.
Long version: https://stackoverflow.com/questions/31588262/css-styling-via-data-attribute-is-not-working-properly-on-ie

Apparently you can get around this by using get/setAttribute(), which does(??) trigger a redraw. Hopefully I can just slip in a shim that uses that instead and we'll be golden.