AnonymousAlligatorOSM

A couple more examples. All the styles I could find that show them at all use a similar striped pattern. Humanitarian:  CyclOSM: 

I'm getting this error in the console:  Which looks like it's referring to this line of code: https://github.com/openstreetmap/iD/blob/e66edcbc997a33963b108153da6d0f88d8a11573/modules/services/streetside.js#L285