Re: [XHR] Open issue: allow setting User-Agent?

On 10/17/12 12:17 AM, Jungkee Song wrote:
> Yes, that could solve the issue, but it seems we cannot avoid the
> intermediary caching proxy problem unless server actually put "Vary:
> User-Agent" in every response. I'm wondering if it's still worth to put it
> into spec.

Again, any intermediary proxy that doesn't assume that is in practice 
broken with real-world content...

> Should we specify the length of the header that the script allows in the
> spec?

That does not seem necessary.  In particular, the only thing this would 
hurt is the script making the request, right?

>> 3. Poorly designed UA-sniffing code may be confused and misinterpret
> tokens in the UA.
>
> Sanitizing the header value could be considered.

Yes.

-Boris

Received on Wednesday, 17 October 2012 15:50:08 UTC