Y.io is not a function

(?)()yui_co...nker.js (line 62)
e = Object { _event=Event click, _currentTarget=body#page-mod-page-view.path-mod, _wrapper={...}, more...}

notifySub()yui_co...-min.js (line 65)
q = BODY#page-mod-page-view yui_3_4_1_1_1334060464148_20 { _yuid="yui_3_4_1_1_1334060464148_20", _node=body#page-mod-page-view.path-mod, _stateProxy=body#page-mod-page-view.path-mod, more...}
l = [Object { _event=Event click, _currentTarget=body#page-mod-page-view.path-mod, _wrapper={...}, more...}]
p = Object { _yuid="yui_3_4_1_1_1334060464148_21", id="yui_3_4_1_1_1334060464148_21", type="click", more...}

before()yui_co...-min.js (line 14)
s = [click clientX=162, clientY=503]
u = Object { _yuid="yui_3_4_1_1_1334060464148_21", id="yui_3_4_1_1_1334060464148_21", type="click", more...}

before()yui_co...-min.js (line 13)
v = Object { _yuid="yui_3_4_1_1_1334060464148_22", id="yui_3_4_1_1_1334060464148_22", filter="a.glossary.autolink.concept"}
u = [click clientX=162, clientY=503]
r = undefined

before()yui_co...-min.js (line 13)
v = Object { yui_3_4_1_1_1334060464148_22={...}}
t = [click clientX=162, clientY=503]
r = undefined

before()yui_co...-min.js (line 13)
r = [click clientX=162, clientY=503]

before()yui_co...-min.js (line 13)

_ready()yui_co...-min.js (line 58)
H = click clientX=162, clientY=503

[Break On This Error] 	

Y.io(fullurl, cfg);

yui_co...nker.js (line 62)
Security error