I am using Yahoo.util.connect.asyncRequest POST with callback.
but it stopped working suddenly on UAT environment giving 500 internal server error as "Page not found"
However same code is working fine on dev environment.
It seems Ajax call is failing and not able to reach targeted page. In Firefox and chrome It giving 500 error as page not available. Is it failing to some security setting in UAT server ( Window 2018) ? How do I log root cause of failure with Yahoo.util.connect.asyncRequest POST with callback.