Moodle-Behat-ZombieJS (behat test site, master, JS errors)

gistfile1.txt

Zombie: GET http://localhost/INTEGRATION/master/index.php => 200
Zombie: GET http://localhost/INTEGRATION/master/lib/javascript.php/1386731529/lib/javascript-static.js => 200
Zombie: GET http://localhost/INTEGRATION/master/theme/yui_combo.php?rollup/3.13.0/yui-moodlesimple.js&rollup/1386731529/mcore-debug.js => 200
Zombie: Cannot read property 'className' of null TypeError: Cannot read property 'className' of null
    at http://localhost/INTEGRATION/master/index.php:3:14
    in http://localhost/INTEGRATION/master/index.php
moodle-core-dock-loader: Dock loader initialising
Zombie: Cannot call method 'delegate' of null TypeError: Cannot call method 'delegate' of null
    at Object.initLoader (/INTEGRATION/master/theme/yui_combo.php:54714:55)
    at http://localhost/INTEGRATION/master/index.php:6:104
    at [object Object]._notify (/INTEGRATION/master/theme/yui_combo.php:12545:17)
    at /INTEGRATION/master/theme/yui_combo.php:12520:19
    at [object Object]._notify (/INTEGRATION/master/theme/yui_combo.php:12545:17)
    at /INTEGRATION/master/theme/yui_combo.php:12690:27
    at [object Object]._use (/INTEGRATION/master/theme/yui_combo.php:12781:17)
    at [object Object].use (/INTEGRATION/master/theme/yui_combo.php:12519:15)
    at http://localhost/INTEGRATION/master/index.php:6:43
    at [object Object]._notify (/INTEGRATION/master/theme/yui_combo.php:12545:17)
    in http://localhost/INTEGRATION/master/index.php
Cannot call method 'delegate' of null