What are App Domains in Facebook Apps?

Facebook Problem Overview

I want to add the ability to 'login with Facebook' to my site. But I am confused when I register my site in Facebook Apps. What should I input into App Domains?

Facebook Solutions

Solution 1 - Facebook

the app domain is your domain name.

Before you enter your domain, first click on Add Platform, select website, enter your site URL and mobile site url. Save the settings.

Thereafter, you can enter the domain name in the App domains field.

See more at my blog: http://www.ogbongeblog.com/2014/03/unable-to-add-app-domains-to-new.html

Solution 2 - Facebook

To add to the answers above, the App Domain is required for security reasons. For example, your app has been sending the browser to "www.example.com/PAGE_NAME_HERE", but suddenly a third party application (or something else) sends the user to "www.supposedlymaliciouswebsite.com/PAGE_HERE", then a 191 error is thrown saying that this wasn't part of the app domains you listed in your Facebook application settings.

Solution 3 - Facebook

If you don't specify the platform for the app you won't able to add app domain correctly.

Here is an example -- validate that its a type a website platform.

Solution 4 - Facebook

In this example:

http://**www.example.com:80**/somepage?parameter1="hello"&parameter2="world"

the bold part is the Domainname. 80 is rarely included. I post it since many people may wonder if 3000 or some other port is part of the domain if their not staging their app for production yet. Normally you don't specify it since 80 is the default, but if you just want to specify localhost just do it without the port number, it works just as fine. The adress, though, should be http://localhost:3000 (if you have it on that port).

Solution 5 - Facebook

it stands for your website where your app is running on. like you have made an app www.xyz.pqr then you will type this www.xyz.pqr in App domain the site where your app is running on should be secure and valid

Solution 6 - Facebook

It's simply the domain that your "facebook" application (wich means application visible on facebook but hosted on the website www.xyz.com) will be hosted. So you can put App Domain = www.xyz.com

Solution 7 - Facebook

I think it is the domain that you run your app.

For example, your canvas URL is facebook.yourdomain.com, you should give App domain as .yourdomain.com

Content Type	Original Author	Original Content on Stackoverflow
Question	Namal	View Question on Stackoverflow
Solution 1 - Facebook	Jide	View Answer on Stackoverflow
Solution 2 - Facebook	escape008	View Answer on Stackoverflow
Solution 3 - Facebook	Gajen Sunthara	View Answer on Stackoverflow
Solution 4 - Facebook	patriques	View Answer on Stackoverflow
Solution 5 - Facebook	saurabh	View Answer on Stackoverflow
Solution 6 - Facebook	Revious	View Answer on Stackoverflow
Solution 7 - Facebook	hungneox	View Answer on Stackoverflow