Question: connect to IPv6 site via http proxy using literal IPv6 address?

[Clinton Work]

I just tried the following scenario via a dual-stack squid proxy and it worked fine.  I doubt you will see very many IPV6 literals on web sites.  

The chrome browser in this case just passed off the URL "as is" to the squid proxy server.   
1424108320.965    162 127.0.0.1 TCP_MISS/301 646 GET http://[2001:470:0:1f9::2]/ - HIER_DIRECT/2001:470:0:1f9::2 text/html

The web server redirected the client to http://bgp.he.net/.   

-----Original Message-----
From: ipv6-ops-bounces+clinton.work=telus.com at lists.cluenet.de [mailto:ipv6-ops-bounces+clinton.work=telus.com at lists.cluenet.de] On Behalf Of Schmoll, Carsten
Sent: February 16, 2015 10:40 AM
To: ipv6-ops at lists.cluenet.de
Subject: Question: connect to IPv6 site via http proxy using literal IPv6 address?

Dear IPv6 experts,

what is your experience with a situation such as this:

	*  IPv4-only client in IPv4-only subnet running a web browser
	*  this client accesses the Internet via a local HTTP proxy, connects to it via IPv4 (of course)
	*  the Proxy is dual-stack "on the outside", i.e. can talk v4 and v6 towards the Internet

What happens if the user on the client tries to open a web site with a literal IPv6 address in the URI?
Will the URI still get passed to the http proxy "as is" as it would happen with URIs that contain a host name?
Or can/will the client's browser get into trouble in this situation (seeing an IPv6 address, but not having IPv6 itself)?

Thanks for enlightenment
Carsten