Re: setting cache-control headers in response; ultimately being ignored
Re: setting cache-control headers in response; ultimately being ignored
- Subject: Re: setting cache-control headers in response; ultimately being ignored
- From: William Hatch <email@hidden>
- Date: Sun, 09 Nov 2008 16:07:18 -0500
Thanks Ramsey, that did it. I was thinking that the default was the
other way around; false by default in other words. Thanks.
Bill
On Nov 9, 2008, at 11:14 AM, Ramsey Gurley wrote:
Hi William,
I think this comes from the backtrack caching.
http://developer.apple.com/documentation/WebObjects/Web_Applications/Articles/8_Backtracking.html#/
/apple_ref/doc/uid/TP40003273
Ramsey
On Nov 8, 2008, at 2:01 PM, William Hatch wrote:
My goal is to have a da which responds to a request from a content
delivery network where the response headers control how long the
cdn cache's a resource associated with a given url. Generating the
response is fine, but I'm having trouble getting the cache-control
header set properly, according to my log and the wonder log
statements. I'm doing the following where r is my WOResponse object
and maxAge is a string equal to 1d:
r.removeHeadersForKey("cache-control");
r.removeHeadersForKey("pragma");
r.setHeader(("max-age=" +maxAge), "cache-control");
when I explicitly log out the response right after these calls, it
looks good:
headers={cache-control=[max-age=1d], content-length=[308], content-
type=[application/text/html; charset=utf-8], keep-
alive=[Connection]} content-length=308 cookies=null userInfo={}
storePageInBacktrackCache=true >) status=200>
however, ERXApplication.RequestHandling logging indicates that
they're getting reset and ignoring what I had previously set; max-
age is zero and all the other options seem to indicate "don't cache
this..."
headers={cache-control=[private, no-cache, no-store, must-
revalidate, max-age=0], content-length=[308], content-
type=[application/text/html; charset=utf-8], date=[Sat, 08-Nov-2008
18:45:31 GMT], expires=[Sat, 08-Nov-2008 18:45:31 GMT], keep-
alive=[Connection], pragma=[no-cache], set-cookie=[], x-webobjects-
loadaverage=[2]} content-length=308 cookies=() userInfo={}
storePageInBacktrackCache=true >) status=200>
Sorry if this is basic; I've never screwed around with these
specific headers before other than wacking them to get pdf download
to work. Am I doing something wrong to set the cache-control, or
something else, or what? Thanks.
Bill
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