6 ms·
Ask HN: Unknown. Not Unknown or expired link, just Unknown.
When I try to load HN through my http proxy, I get a blank screen with "Unknown." displayed in the top left corner.
I've traced this output back to srv.arc and here is the code:
(= unknown-msg* "Unknown." max-age* (table) static-max-age* nil)
(def respond (str op args cooks ip)
(w/stdout str
(iflet f (srvops* op)
(let req (inst 'request 'args args 'cooks cooks 'ip ip)
(if (redirector* op)
(do (prn rdheader)
(prn "Location: " (f str req))
(prn))
(do (prn header)
(awhen (max-age* op)
(prn "Cache-Control: max-age=" it))
(f str req))))
(let filetype (static-filetype op)
(aif (and filetype (file-exists (string staticdir* op)))
(do (prn (type-header* filetype))
(awhen static-max-age*
(prn "Cache-Control: max-age=" it))
(prn)
(w/infile i it
(whilet b (readb i)
(writeb b str))))
(respond-err str unknown-msg*))))))
I don't read Lisp, let alone Arc but it seems like this code is parsing the http response headers and outputting the error message based on the Cache-Control header value.
Am I warm?
Edit: The URI causing this is news.ycombinator.com
- ColinWright 14y agoI have no idea and can't help you, but it may help others if you mention exactly the URL that you are trying to load.
- jcfrei 14y agoI would guess the problem is with your proxy... or some rare hiccup while pg did some testing. in any case: what are your request headers?
- philhippus 14y agoIt's a transparent proxy, so the request headers are whatever is generated by the browser by default. I do inject a script into the returning http stream, but so does my antivirus without issue. Even if I send an empty script file, the error occurs.
- franze 14y agowe still need your request headers.... the real ones, not the one you think you have
- philhippus 14y agohttp://i.imgur.com/VhQlE.jpg http://i.imgur.com/VhQlE.jpg The link is a screen cap of the GET request and the displayed error message from Chrome.
- smarx 14y agoThe request looks wrong. Normally you should see a host header of "news.ycombinator.com" and a URL of "/". I.e., it should read "GET / HTTP/1.1".
- sesqu 14y agoYes. This is a "no such file" error.
- philhippus 14y agoThe request is not wrong, the server is wrong. Your answer makes sense though...I had a similar issue with Wordpress mangling redirects because it can't handle absolute URI's after GET. When you change your internet settings on Windows to use a proxy, this is the format to which browsers generate requests. From RFC 2616 5.1.2 Request-URI http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html : 'To allow for transition to absoluteURIs in all requests in future versions of HTTP, all HTTP/1.1 servers MUST accept the absoluteURI form in requests, even though HTTP/1.1 clients will only generate them in requests to proxies.' My proxy shouldn't have to alter the request, according to the standard.
- deleted 14y ago[deleted]