Closed Bug 31170 Opened 20 years ago Closed 20 years ago

Proxy: if you get a DNS error, you can never load a different URL


(Core :: Networking, defect, P3, blocker)

Windows NT





(Reporter: buster, Assigned: gagan)




(Whiteboard: [PDT+] w/b minus on 03/10)

I tried loading  The browser never responded...the throbber
kept spinning, the page never loaded.  The message on the status line was
"resolving" or something to that effect.  I tried loading the
page in Nav 4, and immediately got this DNS error page:


     The requested item could not be loaded by the proxy.

     Netscape Proxy is unable to locate the server: The server does
not have a DNS entry. Check the server name in the Location (URL) and
     try again.

Proxy server at on port 8080

So I stopped the page load, but I could not load any other network URLs.  I
stopped the app and restarted, and I could load URLs fine.  It's seems like:
1) we're not responding to the DNS error
2) once we get a DNS error, we can never resolve another host.
Proxies need to work for beta.
Keywords: beta1
Target Milestone: M14
Putting on PDT+ radar for beta1.  Will be minus if not fixed by 03/10.
Whiteboard: [PDT+] w/b minus on 03/10
To be sure this is understood:
Proxies currently work.
IF a proxy returns a DNS error (meaning you put a typo in an URL, or the site is
not currently listed via DNS), then your navigator must be "restarted."
Is that correct?
there isn't a special case for a proxy's DNS error. It is generally reported
back as a 503 HTTP response which we just display as is. I tried reproducing
this and couldn't get reproduce any problems... subsequent requests to the same
proxy work just fine. I tried it also with but I didn't
see any problems. I wonder if this was some problem with the proxy. Marking
Closed: 20 years ago
Resolution: --- → WORKSFORME
Checked with both and proxies.  Works 
for me too.

verified:  2000031318 M15 nb1b
testing to verify problem in nb1b M15
clarified summary for searchability.

will add to the proxy test cases for people to use:
Summary: if you get a DNS error, you can never load a different URL → Proxy: if you get a DNS error, you can never load a different URL
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