Question

I try to send an invitation Via facebook graph API. The link contains an invitation code and everytime i send it with the Facebook UI dialog the link is changing.

FB.init({
  appId: 'facebook_app_id',
  status: true,
  cookie: true,
  xfbml: true
});

FB.ui({
  method: 'send',
  link: 'https://mywebsite.com/i/jywk2j',
  name: 'You get an invitation',
  to: 1
});

When I check the message, the link is ‘https://mywebsite.com’ and the ‘/i/jywk2f’ is missing.

https://mywebsite.com/i/jywk2j Doesnt have any redirections or weird status codes or anything. It is just a normal landing page.

Somebody has any idea what im doing wrong here?

UPDATE

App configuration

Display name: My website name
Namespace: empty
App domains: empty
Hosting url: You have not generated a URL through one of our partners (Get one)

Select how your app integrates with Facebook

Only option selected: Website with Facebook Login
With url: https://mywebsite.com

Results of https://developers.facebook.com/tools/debug

Response Code   200
Fetched URL     https://mywebsite.com/i/jywk2j
Canonical URL   https://mywebsite.com/i/jywk2j

Open Graph Warnings That Should Be Fixed

Inferred Property   The 'og:url' property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property   The 'og:title' property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property   The 'og:description' property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property   The 'og:image' property should be explicitly provided, even if a value can be inferred from other tags.
Tiny og:image       All the images referenced by og:image must be at least 200px in both dimensions. Please check all the images with tag og:image in the given url and ensure that it meets the minimum specification.

Object Properties

og:url      https://mywebsite.com/i/jywk2j
og:type     website
og:title    Title of my website

Answer 1

Ok i fixed the problem. Thanks @chumkiu for pointing me in the right direction.

The problem was that i use a subdomain and my facebook application configuration was wrong. I needed to add App Domains with mywebsite.com and had to delete the subdomain in the Website with Facebook Login section