After publishing a new or edited article, the MyWordEditor UI is unresponsive and requires a page refresh to get passed it. This is on Safari Version 8.0.5 (10600.5.9), OS X Version 10.10.3 (14D105g).
--update -- I just published a few changes to my article and it didn't happen that time. The only difference in the earlier attempts was that URL to the background image was broken, which I fixed. I'm not sure if that would have anything to do with it.