Faced the problem of non-activation of the js script inside the vk application, where to dig?

Question

JavaScript

There is a certain application in VK, the application is a frame. In the text processing application, podio.github.io/jquery-mentions-input is used on localhost, everything is fine take.ms/dFJIL , but in VKontakte there is some garbage. Feeling that the insides of js files are not executed - take.ms/ptF0R
Where to dig, what could be the problem?

Answer 1

Check if it will work just in iframe