What happens when Microsoft Edge fails in the middle of a presentation - and you're from Microsoft? Apparently, you do what anyone else would do.
You install Chrome instead.
That's what happened in the middle of a Microsoft Ignite conference, where Microsoft was demonstrating how to migrate to their Azure cloud service. But after waiting a period for Edge to respond, presenter Michael Leworthy (an expat Aussie and director of Microsoft's Azure business) just gave up and installed Chrome, much to the enjoyment of the crowd.
If you want to enjoy the moment in its glory, get some sound and skip to 36:43. "And we're not going to help make Google better," the presenter joked.
When in doubt, just get the job done. Even if it's not with your own software.