Fix panic with HTTP serve initialization problems.
Fix panic with HTTP serve initialization problems.

abourget/hugo,badoet/hugo,tischda/hugo,melo/hugo,tjyang/hugo,fhergomez/hugo,digitalcraftsman/hugo,digitalcraftsman/hugo,bramp/hugo,MarkDBlackwell/hugo,bramp/hugo,anthonyfok/hugo,Zenithar/hugo,Zenithar/hugo,mitchchn/hugo,coderzh/hugo,gohugoio/hugo,jygastaud/hugo,mayah/hugo,derekperkins/hugo,tjyang/hugo,vbatoufflet/hugo,fedelibre/hugo,mayah/hugo,sprig/hugo,fedelibre/hugo,bogem/hugo,anthonyfok/hugo,melo/hugo,ifraixedes/hugo,MarkDBlackwell/hugo,tubo028/hugo,gohugoio/hugo,fhergomez/hugo,jygastaud/hugo,ryanclarke/hugo,derekperkins/hugo,halostatue/hugo,tischda/hugo,kujohn/hugo,tubo028/hugo,ffrizzo/hugo,tatsushid/hugo,coderzh/hugo,kujohn/hugo,sprig/hugo,mitchchn/hugo,tatsushid/hugo,mdhender/hugo,fedelibre/hugo,mdhender/hugo,bogem/hugo,mdhender/hugo,ffrizzo/hugo,fedelibre/hugo,vbatoufflet/hugo,abourget/hugo,mdhender/hugo,anthonyfok/hugo,soundrussian/hugo,soundrussian/hugo,ryanclarke/hugo,halostatue/hugo,ifraixedes/hugo,badoet/hugo,gohugoio/hugo