ICM_ListCrossCheck: 
ICM_ListCrossCheck: 

GM_xmlhttpRequest doesn't send cookies if third-party cookies are disabled in browser even if request is same-domain: http://git.io/RmCSZw
$.get does the job just as well (seems like GM_xmlhttpRequest is required only for cross-domain reqs).
monk-time/icm-enhanced,labyrinthofdreams/icm-enhanced