Your comments

This is now working. I have a feeling something in the caching that lasts through reboots resolved it.

To add tot he oddball. I duplicated the filerun install to my testsite and the testsite works. I have no clue what is jacked up about the production filerun right now.

Works now. Thanks a bunch.

I was just about to ask this same question to the admins. Can we assume it's a bug?

I think there is a way. WOPI seems to be the protocol to use. I'm not a programmer so its foreign to me, but check this site out. https://wopi.readthedocs.io/en/latest/