downloaded fresh 12.0.0 B1

and installed in https://mydomain.com/beta

site keys generated for https://mydomain.com/beta/

site keys generated for https://mydomain.com/beta

tried above both ways

unable to connect to appsmarket 

THE REDIRECT URI PROVIDED IS MISSING OR DOES NOT MATCH

url going always http instead of https ( checked under inc/header.inc.php  ) there its showing https:// only

https://una.io/m/oauth2/auth?response_type=code&client_id=xkvtytdcfr&redirect_uri=http://mydomain.com/beta/studio/store.php?page=goodies&scope=market&state=b9GUFTgJEh34fgVKjys2

https;// is working https:// not working

when i change site keys to http://mydomain.com/beta/

Then able to connect appsmarket.. Its working