study_error_logging_qlik.js

//November 2017 code
//-----------
//the request-aborted is logged in this `core.models/app.open` function
//which binds to `e.session.Error`, waits 1 second, then console logs. Notice it only logs if:
//e.error is something 
//and e.error is not handled : `!e.error.isHandled`
      
}),
define("core.models/app", ["core.models/rpc-base", "core.models/rpc-session", "core.models/engine", "core.utils/deferred", "util"], function(e, t, n, i, r) {
    "use strict";
    var o, s, a, l = {};
    return o = e.extend("App", {
        init: function(e, n, r, o, a) {
           ...
        },
        open: function() {
            var e = this;
            return e.session.Error.bind(function(e) {
                setTimeout(function() {
                    e.error && !e.error.isHandled && window.console.log("Error from Engine:", e)
                }, 1e3)
            }),