[Curl] Cache entry invalidated too early.

• Component: WebCore Misc.
• Status: RESOLVED FIXED

When a cache entry has expired, it is invalidated when a request for the corresponding url is started.
This is too early, since the resource is possibly not modified (even though it has expired), and the server might respond with a 304 (not modified) response.
When we then receive a 304 response, the cache entry is deleted, and we have no cached response/data to provide.
This can be solved by not invalidating the entry when a request for that url is started, but instead invalidate when a 200 OK response is received,
which means the resource has been modified (this is already implemented).

Created attachment 234489 [details]
Patch

[Alex Christensen]

Comment on attachment 234489 [details]
Patch

Looks good to me, except now CurlCacheManager::isCached needs a const.

Created attachment 234580 [details]
Patch

(In reply to comment #2)
> (From update of attachment 234489 [details])
> Looks good to me, except now CurlCacheManager::isCached needs a const.

Thanks! Added const modifier to isCached method in latest patch.

[Build Bot]

Comment on attachment 234580 [details]
Patch

Attachment 234580 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.appspot.com/results/5621920938590208

New failing tests:
media/W3C/video/src/src_reflects_attribute_not_source_elements.html

[Build Bot]

Created attachment 234586 [details]
Archive of layout-test-results from webkit-ews-13 for mac-mountainlion-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: webkit-ews-13  Port: mac-mountainlion-wk2  Platform: Mac OS X 10.8.5

(In reply to comment #5)
> (From update of attachment 234580 [details])
> Attachment 234580 [details] did not pass mac-wk2-ews (mac-wk2):
> Output: http://webkit-queues.appspot.com/results/5621920938590208
> 
> New failing tests:
> media/W3C/video/src/src_reflects_attribute_not_source_elements.html

I don't think this is related to this patch, as it only affects platforms using Curl.

[WebKit Commit Bot]

Comment on attachment 234580 [details]
Patch

Clearing flags on attachment: 234580

Committed r170949: <http://trac.webkit.org/changeset/170949>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.