[whatwg] First or last Content-Type header?
whatwg at adambarth.com
Mon Jun 1 19:09:51 PDT 2009
2009/6/1 Bil Corry <bil at corry.biz>:
> Den.Molib wrote on 6/1/2009 4:55 PM:
>> follow the last one, as it's the one provided nearer the content.
> And by the same logic, the header closest to the content could be the one that was injected by an attacker (via application hole) -- so might choosing the first header be more prudent?
If your site is vulnerable to header splitting, then you have bigger
problems than injecting a Content-Type header.
In any case, the four major browsers that actually look at the
Content-Type header agree and use the last header. The only browser
that uses the first header more or less ignores it anyway.
More information about the whatwg