Get XSL Script is works intermittently

[harshad-kadam]

steps:
1] then select Get XSL from top right circular option provider
3] from toolbar fetch sample query
4] now hit button named "Get XSL script for Input".

observation works: intermittently.
primary guess looks like cors issue at server side script

below proxy repository contains code for server side script
integration_contracts_converter_v1