Update to allow CORS as API on revision actions
Update to allow CORS as API on revision actions

PeterDaveHello/hackmd,aswathyjacob8/newtest,hackmdio/hackmd,Yukaii/hackmd,Yukaii/hackmd,hackmdio/hackmd,aswathyjacob8/newtest,jackycute/HackMD,Rwing/hackmd,jackycute/HackMD,jccrofty30/hackmd,ironhack/hackmd,aswathyjacob8/newtest,PeterDaveHello/hackmd,Rwing/hackmd,Yukaii/hackmd,Rwing/hackmd,jackycute/HackMD,ironhack/hackmd,jccrofty30/hackmd,jccrofty30/hackmd,PeterDaveHello/hackmd,hackmdio/hackmd,ironhack/hackmd