The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 404; HTTP Message = Not Found

[neutron92]

The URL couldn't be validated. Callback verification failed with the following errors: HTTP Status Code = 404; HTTP Message = Not Found

https://puu.sh/t1skG/2be7d9dbd3.png

[matbeedotcom]

I was getting the same error: I had a typo in my URL

[codename-47]

I am having the same problem. Is there something that we missed? @neutron92 @acidhax where are you retrieving your url from? Thanks in advance.

[matbeedotcom]

The Callback url was incorrect

[jayesh96]

There could be possibly many reasons 1- server is not working (i had worked with ngrok ) 2- verify token is not correct 3- url mismatch error 4- fb uses https request I faced such errors and got these possible solutions to correct that

[alisalman1994]

I have the same issue now ? any one help please

[atw-ninja]

In Setup the Facebook App

#2 Where do I find the callback URL in heroku.com, or is there a command to access it? I entered app domain & the .git address neither work