This site cant be reached error on development store

[oneblood]

hi,

When I try to install my app on development store page , it didnt responded and gives the error ''This site can't be reached''. 

I tried to install my app made with  laravel on localhost like http://myfirstshopifyapp.test/..

And I can see my app below installed apps section in my admin panel as well, but I cant test it on my development store.

Any suggestions?