Enable HTTP pooling again (fixes #15694)
Enable HTTP pooling again (fixes #15694)

mattnenterprise/servo,rnestler/servo,nnethercote/servo,canaltinova/servo,fiji-flo/servo,eddyb/servo,CJ8664/servo,sadmansk/servo,notriddle/servo,DominoTree/servo,saneyuki/servo,emilio/servo,fiji-flo/servo,saneyuki/servo,nnethercote/servo,sadmansk/servo,emilio/servo,dsandeephegde/servo,DominoTree/servo,rnestler/servo,notriddle/servo,ConnorGBrewster/servo,paulrouget/servo,notriddle/servo,splav/servo,KiChjang/servo,SimonSapin/servo,saneyuki/servo,szeged/servo,emilio/servo,dati91/servo,peterjoel/servo,ConnorGBrewster/servo,dati91/servo,KiChjang/servo,thiagopnts/servo,larsbergstrom/servo,fiji-flo/servo,thiagopnts/servo,saneyuki/servo,eddyb/servo,canaltinova/servo,SimonSapin/servo,saneyuki/servo,upsuper/servo,mbrubeck/servo,pyfisch/servo,DominoTree/servo,CJ8664/servo,splav/servo,KiChjang/servo,KiChjang/servo,notriddle/servo,paulrouget/servo,saneyuki/servo,fiji-flo/servo,nnethercote/servo,mattnenterprise/servo,canaltinova/servo,sadmansk/servo,ConnorGBrewster/servo,splav/servo,mbrubeck/servo,dati91/servo,thiagopnts/servo,avadacatavra/servo,SimonSapin/servo,mattnenterprise/servo,avadacatavra/servo,upsuper/servo,dati91/servo,splav/servo,mattnenterprise/servo,paulrouget/servo,szeged/servo,mattnenterprise/servo,thiagopnts/servo,jimberlage/servo,peterjoel/servo,pyfisch/servo,dsandeephegde/servo,DominoTree/servo,nnethercote/servo,paulrouget/servo,avadacatavra/servo,cbrewster/servo,rnestler/servo,jimberlage/servo,eddyb/servo,DominoTree/servo,pyfisch/servo,jimberlage/servo,emilio/servo,cbrewster/servo,thiagopnts/servo,CJ8664/servo,peterjoel/servo,jimberlage/servo,splav/servo,DominoTree/servo,mbrubeck/servo,saneyuki/servo,anthgur/servo,cbrewster/servo,jimberlage/servo,eddyb/servo,larsbergstrom/servo,paulrouget/servo,KiChjang/servo,upsuper/servo,nnethercote/servo,splav/servo,splav/servo,eddyb/servo,ConnorGBrewster/servo,canaltinova/servo,KiChjang/servo,dsandeephegde/servo,CJ8664/servo,fiji-flo/servo,canaltinova/servo,pyfisch/servo,anthgur/servo,sadmansk/servo,dati91/servo,canaltinova/servo,emilio/servo,notriddle/servo,dsandeephegde/servo,pyfisch/servo,fiji-flo/servo,ConnorGBrewster/servo,szeged/servo,DominoTree/servo,pyfisch/servo,fiji-flo/servo,emilio/servo,KiChjang/servo,larsbergstrom/servo,anthgur/servo,DominoTree/servo,KiChjang/servo,dsandeephegde/servo,CJ8664/servo,emilio/servo,DominoTree/servo,paulrouget/servo,peterjoel/servo,jimberlage/servo,dati91/servo,larsbergstrom/servo,paulrouget/servo,sadmansk/servo,splav/servo,SimonSapin/servo,canaltinova/servo,dsandeephegde/servo,avadacatavra/servo,peterjoel/servo,avadacatavra/servo,DominoTree/servo,sadmansk/servo,canaltinova/servo,SimonSapin/servo,szeged/servo,nnethercote/servo,cbrewster/servo,ConnorGBrewster/servo,szeged/servo,SimonSapin/servo,upsuper/servo,emilio/servo,notriddle/servo,rnestler/servo,peterjoel/servo,anthgur/servo,cbrewster/servo,upsuper/servo,rnestler/servo,CJ8664/servo,rnestler/servo,nnethercote/servo,dsandeephegde/servo,emilio/servo,anthgur/servo,peterjoel/servo,szeged/servo,KiChjang/servo,dati91/servo,anthgur/servo,eddyb/servo,splav/servo,CJ8664/servo,larsbergstrom/servo,peterjoel/servo,paulrouget/servo,paulrouget/servo,thiagopnts/servo,KiChjang/servo,SimonSapin/servo,cbrewster/servo,mbrubeck/servo,splav/servo,upsuper/servo,mbrubeck/servo,thiagopnts/servo,dsandeephegde/servo,jimberlage/servo,SimonSapin/servo,rnestler/servo,nnethercote/servo,thiagopnts/servo,larsbergstrom/servo,CJ8664/servo,nnethercote/servo,paulrouget/servo,mattnenterprise/servo,pyfisch/servo,emilio/servo,dati91/servo,larsbergstrom/servo,nnethercote/servo,notriddle/servo,fiji-flo/servo,szeged/servo,saneyuki/servo,anthgur/servo,avadacatavra/servo,eddyb/servo,upsuper/servo,notriddle/servo,cbrewster/servo,mbrubeck/servo,avadacatavra/servo,saneyuki/servo,jimberlage/servo,mattnenterprise/servo,larsbergstrom/servo,notriddle/servo,upsuper/servo,pyfisch/servo,szeged/servo,eddyb/servo,notriddle/servo,mattnenterprise/servo,larsbergstrom/servo,rnestler/servo,szeged/servo,anthgur/servo,pyfisch/servo,jimberlage/servo,ConnorGBrewster/servo,sadmansk/servo,saneyuki/servo,sadmansk/servo,avadacatavra/servo,ConnorGBrewster/servo,mbrubeck/servo,mbrubeck/servo,cbrewster/servo,larsbergstrom/servo,peterjoel/servo,peterjoel/servo,pyfisch/servo,szeged/servo