Can't add domain for push notifications in google developers console -

Can't add domain for push notifications in google developers console -

i've created new application in google developers console, app using google calendar api , want able force notifications on changes in calendar. i've added , verified domain in web master tools, when seek add together domain in force notifications section in console error:

error

you not have access next domain: ***

i tried application (with different google account), , encounter same problem, seems google having problem because it's not first time i'm doing , should pretty simple, suggestions?

in order add together domain "push notifications" must verify domain in webmaster tools "https://" prefix, otherwise won't work because force notifications in google works "https://", that's why need verify in webmaster tools "https://" google can verify have ssl.

google-api google-calendar google-apps