292941 - blazing fast back/forward doesn't work for sites that use cache-control: no-store

Status: RESOLVED INVALID

(Core :: DOM: Navigation, defect)

Description

[Steve England [:stevee]]

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b2) Gecko/20050504
Firefox/1.0+ after landing of bug 274784
browser.sessionhistory.max_viewers 20

Apologies if this is expected behaviour.

1. Go to http://fileforum.betanews.com/
2. Click a link.
3. Click back. Notice the page is loaded from the web, and is not blazingly fast.
4. Click forwards. Notice the page is loaded from the web, and is not blazingly
fast.

Comment 1

[Jo Hermans]

Note that http://fileforum.betanews.com/ isn't cached at all according to Page
Info (not a meta-header, it must be a http-header). Doesn't this force us to
reload the page ?

Comment 2

[Frank Wein [:mcsmurf]]

Yeah the site includes those HTTP headers:
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache

Opera seems to ignore that and use the cache anyway, but i don't think we want
to do that?

Comment 3

[Oliver Saier]

Seems to WFM. Have they removed cache control?

Comment 4

[Oliver Saier]

They did
---
Cache-Control: private, must-revalidate, pre-check=0, post-check=0
Pragma: n/a
---
(sorry about the double post)

Comment 5

[Peter van der Woude [:Peter6]]

another link to use / testcase would be nice

Comment 6

[Brian Ryner (not reading)]

This is by design.  See https://bugzilla.mozilla.org/show_bug.cgi?id=112564 for
more info -- we don't want to start getting blocked on various web sites.

Comment 7

[Jo Hermans]

*** Bug 298128 has been marked as a duplicate of this bug. ***

Comment 8

[Vlad Berditchevskiy]

IMHO this is a bad decision, because mozilla can start being blocked by users,
who will just use another browser. I know several people who prefer opera to
mozilla because it's faster. Now, whith the new fast cache mozilla can finally
match opera's speed, but the issue described in this thread makes this
achievement nearly useless.

P.S. And if "various web sites" really start blocking mozilla, it can be easily
worked around. I think that usability of software should have a higher priority
than politics. There should be at least an option to let the users cache what
thay want and not what some broken websites want them to.