prevent weird hangup on error setting a header with a newline
prevent weird hangup on error setting a header with a newline

challengerdeep/prerender,netconstruct/prerender,PaigeeWorld/prerender,goabout/prerender,fiverr/prerender,inventaire/prerender,prerender/prerender,viovendi/prerender,ArnaudValensi/prerender-schedule-from-sitemap,netlify/prerender,GerardoNevarez/prerender,mgmco/prerender,icilalune/prerender,inventaire/prerender,JuoCode/prerender,goabout/prerender,fiverr/prerender