Chrome Extension InApp Payments - TOKEN_MISSING_ERROR
https://console.developers.google.com/apis/credentials
Create credentials, select OAuth client ID
, Application type as Chrome App
.
In your manifest.json,
"oauth2": {
"client_id": "??????.apps.googleusercontent.com",
"scopes": [
"https://www.googleapis.com/auth/chromewebstore.readonly"
]
},