Ratel Installer for Linux, MacOs and Windows (UPDATED 2020)

hi, Michel, When I run the query
{
test(func: has(name)){
uid
name
}
}
,there is a error message “Unsupported Content-Type, Supported content types are application/json, application/graphql±”, but the content type is indeed application/graphql±, I don’t know what’s wrong? thanks

when I click the button “Manage Schema”, the error message is “Error While trying to fetch schema”, but I have already connected the server