Andrey Gromyko wrote:
On Thu, 03 Aug 2006 21:17:24 +0100
Matthew Wilson <[EMAIL PROTECTED]> wrote:
Andrey Gromyko wrote:
Hi All,
In the NewsFox extension I use next lines to download feed(s):
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("get", feed.url);
xmlhttp.setRequestHeader("User-Agent", "Mozilla/5.0
NewsFox/0.3.4"); xmlhttp.overrideMimeType("application/xml");
xmlhttp.onload = function() { checkFeed(index,
xmlhttp.responseXML); } xmlhttp.send(null);
Adding the next line before send doesn't help to avoid the use of
Firefox's cache: xmlhttp.channel.loadFlags =
Components.interfaces.nsICachingChannel.LOAD_BYPASS_CACHE;
And that causes problems with some feeds. Does anybody know how can
I bypass the cache? Similarly tp the behaviour of the browser when
somebody pressed Shift+Reload.
Arguably you should be respecting the cache here. If a feed is set up
so that newsreaders only refetch it every hour (for example), then
that's a deliberate strategy to reduce bandwidth, and a well-behaved
client follow the rules.
There is at least one news-feed I know which has 100+ new entries a day and
> Firefox (which, I assume, "respects the cache") doesn't fetch an
updated xml
> without unless I press Shift+Reload. What would you say about that?
(rhetorical question...)
Answering non-rhetorically, I would say that, in theory, the webmaster
has not set up his or her site correctly, and that they should fix that.
Matthew
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