ios and http restriction(solved)

i am in development mode and i am trying the htmlviewer for ios.
When i give a simple http there is nothing in htmlviewer.
When i open the console for errors i get the bellow

App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file

Because there is no build app how to pass this restriction for http.?
Is any solution on this?

best is to use https://
I use let’s encrypt for all my domains (at minimum)

Thank you Jean and Derk for the fast reply…
I take a look…