bug: Cannot read property 'toLowerCase' of undefined

[ghost]

angular.js:14996 TypeError: Cannot read property 'toLowerCase' of undefined
    at HTMLAnchorElement.<anonymous> (layout.min.js:1)
    at Function.each (jquery.min.js:2)
    at m.fn.init.each (jquery.min.js:2)
    at s (layout.min.js:1)
    at Object.initHeader (layout.min.js:1)
    at main.js:58
    at b.$emit (angular.js:19071)
    at angular.js:28883
    at angular.js:17374
    at m.$digest (angular.js:18535)
(anonymous) @ angular.js:14996
(anonymous) @ angular.js:11280
$emit @ angular.js:19073
(anonymous) @ angular.js:28883
(anonymous) @ angular.js:17374
$digest @ angular.js:18535
$apply @ angular.js:18923
k @ angular.js:12777
V @ angular.js:13034
A.onload @ angular.js:12939
load (async)
(anonymous) @ angular.js:12922
t @ angular.js:12722
(anonymous) @ angular.js:12463
(anonymous) @ angular.js:17374
$digest @ angular.js:18535
$apply @ angular.js:18923
(anonymous) @ angular.js:1926
invoke @ angular.js:5093
c @ angular.js:1924
Vc @ angular.js:1944
xe @ angular.js:1829
(anonymous) @ angular.js:35098
j @ jquery.min.js:2
fireWith @ jquery.min.js:2
ready @ jquery.min.js:2
J @ jquery.min.js:2
stateService.ts:525 Transition Rejection($id: 0 type: 6, message: The transition errored, detail: TypeError: Cannot read property 'toLowerCase' of undefined)
_defaultErrorHandler @ stateService.ts:525
e.logError @ transitionHook.ts:79
(anonymous) @ transitionHook.ts:66
o @ transitionHook.ts:99
e.invokeHook @ transitionHook.ts:115
(anonymous) @ transitionHook.ts:243
e.runAllHooks @ transitionHook.ts:243
i @ transition.ts:652
(anonymous) @ angular.js:17374
$digest @ angular.js:18535
$apply @ angular.js:18923
k @ angular.js:12777
V @ angular.js:13034
A.onload @ angular.js:12939
load (async)
(anonymous) @ angular.js:12922
t @ angular.js:12722
(anonymous) @ angular.js:12463
(anonymous) @ angular.js:17374
$digest @ angular.js:18535
(anonymous) @ angular.js:18855
e @ angular.js:6479
(anonymous) @ angular.js:6757
setTimeout (async)
h.defer @ angular.js:6755
$evalAsync @ angular.js:18853
(anonymous) @ angular.js:17246
k @ angular.js:17422
l @ angular.js:17449
h @ angular.js:17433
resolve @ angular.js:17324
l.onload.l.onreadystatechange @ ocLazyLoad.min.js:8
load (async)
n.buildElement @ ocLazyLoad.min.js:8
(anonymous) @ ocLazyLoad.min.js:8
q @ angular.js:374
n.cssLoader @ ocLazyLoad.min.js:8
n.filesLoader @ ocLazyLoad.min.js:8
n.load @ ocLazyLoad.min.js:8
(anonymous) @ ocLazyLoad.min.js:8
q @ angular.js:374
n.load @ ocLazyLoad.min.js:8
$stateProvider.state.resolve.deps @ main.js:102
o @ resolvable.ts:119
(anonymous) @ angular.js:17374
$digest @ angular.js:18535
$apply @ angular.js:18923
(anonymous) @ angular.js:1926
invoke @ angular.js:5093
c @ angular.js:1924
Vc @ angular.js:1944
xe @ angular.js:1829
(anonymous) @ angular.js:35098
j @ jquery.min.js:2
fireWith @ jquery.min.js:2
ready @ jquery.min.js:2
J @ jquery.min.js:2
stateService.ts:527 TypeError: Cannot read property 'toLowerCase' of undefined
    at HTMLAnchorElement.<anonymous> (layout.min.js:1)
    at Function.each (jquery.min.js:2)
    at m.fn.init.each (jquery.min.js:2)
    at s (layout.min.js:1)
    at Object.setMainMenuActiveLink (layout.min.js:1)
    at directives.js:23
    at transitionHook.ts:93
    at e.invokeHook (transitionHook.ts:93)
    at transitionHook.ts:243
    at Array.forEach (<anonymous>)

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