Sébastien Deleuze opened SPR-12698 and commented
While testing all the combinaisons of browsers + SockJS same/cross domain origins, I found an issue on iframe-htmlfile support with IE8, this line produces a Javascript error (I will also create an issue for this one tomorrow, I think it could wait 4.1.6 for the fix).
Reference URL: https://docs.google.com/a/pivotal.io/spreadsheets/d/1nmrUh3wl5bsEGFK6jjagikd2SoQ7OIxZ-DlhCbSwnEM/edit#gid=1634238534
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