how do i run loadstring with local scripts?

hi im basstracker1970 from roblox im wondering on how i can run loadstrings with local scripts

wait(1)
local http = game:GetService("HttpService")

local data = {
script.Parent.TextBox.Text}
local banned = {
["Brutal Overlord"] = true,
["Lost Hope"] = true
}
local url = http:GetAsync(script.Parent.TextBox.Text,true)

local decode = http:UrlEncode(url)

data = http:JSONEncode(data)

---local url2 = http:PostAsync(url,data,true)
---data = http:JSONDecode(data)
wait(0.2)
for i,v in pairs(banned) do
if string.find(url,"--Brutal Overlord--") or string.find(url,"hedshoot()") then
while true do--Crash The People Who Use A Banned Script

end
else
local load = (loadstring(url,data))()
end
end

http://wiki.roblox.com/index.php?title=Global_namespace/Basic_functions#loadstring You can't...