edge.4.0.1 Failed to execute 'insertRule' - how can i fix it?

hello,

im having big trouble with my comp. in FF everything works fine.. but in safari and chrome i get errors in the edge.4.0.1.js (please see pictures). is there a way i can fix this?

PS: if i refresh the page once, everything works fine! it happens only the first time (cache cleared).

thanks in advance

santiago