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Bug: View after Save loses text

This was previously reported indirectly as the reason for SavePreviewTextOnServer, see discussion there and in ViewAfterSaveCachesOldPage.

Test case

Intermittent...

  • Edit a page, make a change, Preview and Save
  • (sometimes) your change will not show up on the View page
  • Hit Ctrl/Refresh (IE) or Shift/Reload (Netscape/Mozilla) to bypass any proxy caches
    • If the change shows up, you probably have the cache-related variant of this bug, please see ViewAfterSaveCachesOldPage
    • If not, try using another browser to get the view page, e.g. OperaBrowser or MozillaBrowser - if you don't have another browser, try using another PC.
  • If you still get the old page, you have the non-cache-related variant of this bug
    • I tried Lynx and Mozilla and still got the old page, so it is not cache-related (in this variant) - no proxy caches in use by any browser

Environment

TWiki version: March 2001 beta
TWiki plugins: Interwiki
Server OS: Red Hat Linux 6.2
Web server: Apache 1.3.12
Perl version: 5.005_03
Client OS: Win2000 SP2
Web Browser: IE 5.5 SP2

CGI.pm version: 2.46

Proxy cache: none

-- RichardDonkin - 19 Mar 2002

Follow up

The two variants of this bug are somewhat confusing - this one is definitely not a caching bug, as I don't use a proxy cache at all and trying Ctrl/Refresh and other browsers did not reveal the real page was being improperly cached.

I've instrumented our local TWiki to record the $text value for all pages saved - this will help work out if it's a TWiki bug or (more likely) in CGI.pm, InternetExplorer or Apache.

NOTE: If you get this bug, please record your CGI.pm version, and any use of proxy caches. This bug has been lingering around for many months...

-- RichardDonkin - 19 Mar 2002

Follow up

Same error: My Environment

TWiki version: Dec 2001 release
TWiki plugins: Interwiki, CommentPlugin, SingletonWikiWordPlugin, SmiliesPlugin, TablePlugin, TopicVarsPlugin
Server OS: Sun OS
Web server: Apache
Perl version: 5.6.0
Client OS: WinNT 4 (SP5)
Web Browser: Netscape 4.77

CGI.pm version: 2.68

Proxy cache: none

-- PetricFrank - 16 Apr 2002

I assume you tried Ctrl/Refresh or Shift/Reload, and this didn't help? If so, this does seem to be this bug. It would be worth recording the $text value on all save operations (using writeDebug), to help narrow down whether this bug is in TWiki or somewhere else.

-- RichardDonkin - 17 Apr 2002

Fix record

I really don't believe this is a TWiki bug, but is (if it still exists) a bug in browser/web server interaction, or incorrect configuration, or finger trouble. Everyone is aware of it and this report adds no value, so I'm closing it as unreproducible and adding a feature request to add the "solution" to a FAQ - see AddSaveProblemAnalysisToFaQ.

-- CrawfordCurrie - 20 Jul 2004

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Topic revision: r9 - 2004-07-29 - SamHasler
 
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