Handle case where URL is nil
Handle case where URL is nil

nanthi1990/HackerNews,sdhzwm/HackerNews,nanthi1990/HackerNews,gregttn/HackerNews,jinjian1991/HackerNews,amitburst/HackerNews,SuPair/HackerNews,gregttn/HackerNews,ZNosX/HackerNews,ZNosX/HackerNews,yiguid/HackerNews,yiguid/HackerNews,seyton/HackerNews,wrcj12138aaa/HackerNews,epiphany27/HackerNews,seyton/HackerNews,aarpy/HackerNews,amitburst/HackerNews,epiphany27/HackerNews,aarpy/HackerNews,SuPair/HackerNews,jinjian1991/HackerNews,wrcj12138aaa/HackerNews,sdhzwm/HackerNews