Enable transition tracing to print transition information to the console, in order to help debug your application. Tracing logs detailed information about each Transition to your console.

To enable tracing, import the Trace singleton and enable one or more categories.

ES6

import {trace} from "@uirouter/core";
trace.enable(1, 5); // TRANSITION and VIEWCONFIG

CJS

let trace = require("@uirouter/core").trace;
trace.enable("TRANSITION", "VIEWCONFIG");

Globals

let trace = window["@uirouter/core"].trace;
trace.enable(); // Trace everything (very verbose)

Angular 1:

app.run($trace => $trace.enable());