[html5] app manifest & 404/500 pages

Rik Sagar org.whatwg at sagar.org
Mon Feb 13 17:35:43 PST 2012

Hi Ian,

I'm don't see the "rarely offline" notion as a good argument for the
behavior described.  IMHO if a server is responding with an error it's not
appropriate for the client to interpret that as "I'm offline".

I also don't think the captive portal argument is valid.  If I hit a
captive portal I don't get an error, I get a splash page with a login
button.  I'm not sure if I get a 3xx page first, I imagine I should.  And
in that case, I really need to see that page (rather than cached copy of
the real site).  Otherwise how will I accept the portals TOS and get
connected to the Internet?


Rik Sagar, San Jose, CA 95124
Visit : http://sagar.org/

  +1-408-799-4589  (mobile)
  0113-815-1583 (from UK)

On Sat, Feb 11, 2012 at 12:20 PM, Josh Sharpe <josh.m.sharpe at gmail.com>wrote:

>> I don't see the problem. You should presumably never be sending back a
>> 404, since the user will never request a page you don't have unless you
>> have a broken link or something, and you should never ever send back a 500
>> unless your server is in fact offline (or broken, which amounts to the
>> same thing).
> Yes, of course the app shouldn't be making a habit out of returning 404
> and 500 pages.  That doesn't mean it won't ever happen and shouldn't
> be accommodated for.  Pages get removed, google has stale links, other
> sites have link backs, users type the wrong thing into the URL bar....
>> Generally speaking, by the way, having your entire site in the FALLBACK
>> section under one entry is probably not what you want. The FALLBACK
>> section is supposed to just be for files that you would want to have
>> cached but that you don't cache because there's too many of them (e.g.
>> photos on Flickr). The fallback page is supposed to be able to generate
>> the page from the local database, if the data is available.
> I'm using a derivative of an example given by current living standard.
> See section (last example)
> http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html#some-sample-manifests
> ... as far as I can tell that example is going to break all existing error
> pages and is probably not something that should be in the standard unless
> there's a workaround for the issue.
>> --
>> Ian Hickson               U+1047E                )\._.,--....,'``.    fL
>> http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
>> Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'
> _______________________________________________
> Help mailing list
> Help at lists.whatwg.org
> http://lists.whatwg.org/listinfo.cgi/help-whatwg.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.whatwg.org/pipermail/help-whatwg.org/attachments/20120213/0e4061fb/attachment-0002.htm>

More information about the Help mailing list