Domains are not being added, Whitelist domains facebook messenger extension - node.js

Question

I've been trying to whitelist my domains following the instruction that is given by facebook but nothing is working.
I first tried with curl, the response is {result:"success"} but when I try to list the domains that are whitelisted I am getting {data:[]}
Then I tried using node request module as follow:
request.post("https://graph.facebook.com/v2.6/me/messenger_profile?access_token=sfdlksdfu79r9429049824982342348sjdfsf", {
"setting_type": "domain_whitelisting",
"whitelisted_domains": ["https://mydomainw.com", "https://mydomainw.com/profile", "https://sfujyx.com/ofr", "mydomain1.com", "mydomain.com"],
"domain_action_type": "add"}, function (err, res, body) {
console.log("Whitelisting domain");
if (!err) {
console.log(body);
console.log("Showing the list of whitelisted:");
request.get("https://graph.facebook.com/v2.6/me/messenger_profile?fields=whitelisted_domains&access_token=sfdlksdfu79r9429049824982342348sjdfsf", function (err, res, body) {
if (!err) {
console.log(body);
} else {
console.log(err);
}
});
} else {
console.log(err);
}
});
Still it bring the same result as curl :
And when I use Facebook Graph Api Explorer tool, here is the error I am getting:
I am really stuck, I don't know what should I do or how people exactly whitelist domain for messenger extension.
What I am doing wrong? why isn't the domains being added?
My project is on Google App Engine.

Answer 1

The problem is I was using the App Access Token instead of the Page Access Token, I didn't know the difference.

Answer 2

your domain: "https://mydomainw..com" is an invalid domain.
The request should return:
{
"error": {
"message": "(#100) whitelisted_domains[0] should represent a valid URL",
"type": "OAuthException",
"code": 100,
"fbtrace_id": "Aq3AVaNVJU9"
}
}

Answer 3

Actually, I didn't use "setting_type" before. This is how I register domains:
var request = require("request");
var options = { method: 'POST',
url: 'https://graph.facebook.com/v2.6/me/messenger_profile',
qs: { access_token: 'my_page_token' },
headers: { 'content-type': 'application/json' },
body:
{ whitelisted_domains:
[
'https://mydomainw.com',
'https://ijuugwivbc.localtunnel.me' ] },
json: true };
request(options, function (error, response, body) {
if (error) throw new Error(error);
console.log(body);
});