[whatwg] comment parsing
ian at hixie.ch
Sun Jan 22 19:33:16 PST 2006
On Mon, 23 Jan 2006, Lachlan Hunt wrote:
> I don't understand these security concerns. How is reparsing it after
> reaching EOF any different from someone writing exactly the same script
> without opening a comment before it? Won't the script be executed in exactly
> the same way in both cases?
The difference is that a sanitiser script would notice a <script> element,
but would not notice the contents of a comment. Comments are considered
safe, the publisher would not expect the contents of a comment to suddenly
The comment could be, e.g.:
Let's hope nobody ever manages to sneak this into our site through a
cross-site scripting attack!:
<script> doSomethingEvil(); </script>
That would be terrible!
Oh well. There's no way they could aCONNECTION TERMINATED BY PEER
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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