TinyMce error with 4.0

I’m using TinyMce which worked without issue in 3.x . In 4.0 I’m getting this error

image1261×123 15.5 KB

localhost should work…

image1113×316 20.6 KB

So perhaps something in the way the new version is running? Can this be fixed on the Wappler side? Or is there a different domain I should be registering with Tiny Cloud?

Thanks,
Heather