I have a multi-page app with 3 pages with 64 callbacks. The first page has 29 callbacks, the second has 19 and the third has 16.
The app runs fine on localhost but when deployed to Heroku the third page hangs when loading. There are no error messages, it just seems that not all of the callbacks complete firing. If I remove some of the callbacks and deploy to Heroku then it runs fine.
Further, if I add some more callbacks to the third page and try to run on localhost then the same thing happens. The app just hangs without any errors.
Is there some limit (or limitation) to the number of callbacks that can be fired? Or can anybody think of any other reason why I might be seeing this behaviour?