fix back button doesn't work if i land at subobject page for example from google search in FireFox
fix back button doesn't work if i land at subobject page for example from google search in FireFox

WEBUMENIA-359

SlovakNationalGallery/senxskutocnost.sng.sk,SlovakNationalGallery/senxskutocnost.sng.sk,SlovakNationalGallery/senxskutocnost.sng.sk,SlovakNationalGallery/senxskutocnost.sng.sk,SlovakNationalGallery/senxskutocnost.sng.sk