Had some trouble setting up, but got through those issues. Thanks for your help.
Today Safari on an iPhone 6 attempted to load the WEB Direct file. It complained about the certificate. I'm using the FREE COMMUNITY DEVELOPMENT SERVER 15 with the DEFAULT FILEMAKER CERTIFICATE. Safari allowed me to press continue.
Then it said I had to turn on Java Scripts in settings. I went there and did that.
Now, it tries to load the WEB Direct file, but it spins and spins and spins and spins forever.
I tried clearing the cache and even rebooting the phone. It fails to load.
(The WEB Direct file is loading perfectly from a computer, which is not the hosting computer, using Firefox.)
Phone is stuck.