angular module load error occur when using developer panel

[Kenji Ishii]

When I use Developer panel and not use profiler (OPENSTACK_PROFILER['enabled']=False), the error below would occur. Because Developer panel loads profiler module without any condition but 'horizon.dashboard.developer.profiler.headers' is not loaded.

Uncaught Error: [$injector:modulerr] Failed to instantiate module horizon.app due to:
Error: [$injector:modulerr] Failed to instantiate module horizon.dashboard.developer due to:
Error: [$injector:modulerr] Failed to instantiate module horizon.dashboard.developer.profiler due to:
Error: [$injector:unpr] Unknown provider: horizon.dashboard.developer.profiler.headers
http://errors.angularjs.org/1.5.8/$injector/unpr?p0=horizon.dashboard.developer.profiler.headers
    at http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:68:12
    at http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4511:19
    at getService (http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4664:39)
    at injectionArgs (http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4688:58)
    at Object.invoke (http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4710:18)
    at runInvokeQueue (http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4611:35)
    at http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4620:11
    at forEach (http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:321:20)
    at loadModules (http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4601:5)
    at http://localhost:8080/dashboard/static/horizon/lib/angular/angular.js:4618:40
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