If no content-length, read all. see issue #431

lualib/http/httpc.lua

@@ -72,7 +72,8 @@ local function request(fd, method, host, url, recvheader, header, content)
 				body = body .. padding
 			end
 		else
-			body = nil
+			-- no content-length, read all
+			body = body .. socket.readall(fd)
 		end
 	end
 

lualib/http/sockethelper.lua

@@ -19,6 +19,8 @@ function sockethelper.readfunc(fd)
 	end
 end
 
+sockethelper.readall = socket.readall
+
 function sockethelper.writefunc(fd)
 	return function(content)
 		local ok = writebytes(fd, content)