test request header content-type
test request header content-type

MatthieuKopec/active-rest-client,andyjeffries/active-rest-client,chenhang/active-rest-client,MoKuH/active-rest-client,nathanhoel/active-rest-client,djpate/active-rest-client,andyjeffries/flexirest,whichdigital/active-rest-client,chibicode/active-rest-client