I met error when get Channel Subscribers

API
6

Yes, I sent a token.

Step of code is below.

Step 1:
https://id.twitch.tv/oauth2/authorize?client_id='+config.twitch_getToken.clientID+'&redirect_uri='+config.twitch_getToken.callbackURL+'&response_type=code&scope=channel_subscriptions

Step 2:
https://id.twitch.tv/oauth2/token?client_id=<%=config.clientID%>&client_secret=<%=config.clientSecret%>&code=<%=code_channel_subscriptions%>&grant_type=authorization_code&redirect_uri=<%=config.callbackURL%>

Step 3:

fetch('https://api.twitch.tv/kraken/channels/<%=user.username%>/subscriptions', {
	method: 'GET',
	headers: new Headers({
	    'Authorization': 'OAuth ' + data.access_token,
	    'Client-ID': '<%=config.clientID%>',
	    'Accept': 'application/vnd.twitchtv.v5+json'
	})
    }).then(response => response.json()).then(data => {						
	console.log('get subscriptions === '+JSON.stringify(data)); 
    });

Result:
{“error”:“Forbidden”,“status”:403,“message”:“Unable to access channel subscribers of <channel_id>”}