> From: Alexis Sukrieh <[email protected]>
>To: [email protected]; Perl Dancer users mailing list 
><[email protected]> 
>Sent: Thursday, 3 January 2013, 11:46
>Subject: Re: [dancer-users] Before Hook hit multiple times.
> 


>Dancer is a DSL to write a web application. Its purpose is to provide a clean 
>and intuitive syntax for describing how to handle a request and which response 
>to produce. This is based of course on the HTTP protocol, and Dancer relies 
>entirely on that.
>
>That means that everything in Dancer's point of view is related to an incoming 
>_request_. In the HTTP meaning. If Chrome hits favicon.ico whenever you hit 
>the app, you'll send 2 requests every time you hit the browser's reload 
>button. You are sending 2 requests, period.
>
>Dancer sees 2 requests, and acts accordingly.
>
>Implementing a workaround to simulate the concept of "human requests" versus 
>real "HTTP requests" sounds crazy to me and error-prone.
>
>What makes Dancer so appealing is its thin layer over the HTTP stack, this 
>kind of change or enhancement is dangerous, I think.


I agree with this. The app doesn't know that it's a browser making an extra 
request to favicon.ico instead of a human doing so. In being a veteran of the 
"robot versus human" wars, I can tell you that trying to make the distinction 
is a nightmare and wastes time trying to fight a losing war when, instead, you 
can be building value.

If you really think something is wrong, dump the request object in the before 
hook so you can see exactly what is happening in each request. That will clear 
this up pretty fast, I suspect.

On the other hand, if you can demonstrate a foolproof method of determining 
which requests are of human origin and which are not, I suspect the Dancer team 
would be happy to incorporate this right after you pick up your Turing Award :)

Cheers,
Ovid
--
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