UI-grid export feature is Not working on a deployment. But for a different server with older deployment it works fine. No error is being displayed

We are deploying an angular-js application on our test server. here we are using export feature of ui-grid. But in our test server this feature doesn't work. Menu at the top right corner of the ui-grid is being displayed; but on clicking any options nothing happens! We get no error in console of browser either. In one of our clients' server, it is working fine. We copied the published folder from that client's server & deployed it in our test server. But it didn't resolve the issue. Everything else works fine, but not the export feature.