[Webkit-unassigned] [Bug 12664] New: REGRESSION: After navigating between pages, returning back to a previously cached page is displayed as blank in window

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Feb 6 23:33:35 PST 2007


           Summary: REGRESSION: After navigating between pages, returning
                    back to a previously cached page is displayed as blank
                    in window
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Keywords: InRadar
          Severity: Normal
          Priority: P1
         Component: WebCore Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mjs at apple.com

2007-01-27 10:29:39 Chris Petersen:
With Safari-Leopard-Production-19168-11910.tar.gz, I have encountered a problem
where returning back to a previously cached page fails to display it' content.
Basically, the page is empty.

I have tracked this regression to

1. With TOT (Tiger) or TOT (Leopard), go to http://www.apple.com/startpage/
2. After page loads, type bogus URL in the Address URL field and attempt to go
to it.
3. You should get a "Safari can't find the server" page. Now press the  back
toolbar icon to return to previous page ( http://www.apple.com/startpage/ )
4. After  http://www.apple.com/startpage/  loads, press the forward toolbar
5. After "Safari can't find the server" page appears,  press the  back toolbar
icon  once again
6. Notice the page for http://www.apple.com/startpage/ is blank

Returning back to the previous cached page should display it's contents but

Yes, since the doesn't occur in stock Leopard9A348.

2007-01-29 11:44:02 Brady Eidson:
This has already made it into our last submission, but I'm still taking a
look...  if it really requires an error page and this bizarre "back - forward -
back" step, I'm not sure its worth of the keyword

2007-01-29 11:44:19 Brady Eidson:
submission blocker, that is - definitely still blocker

2007-01-29 11:58:10 Brady Eidson:
I've confirmed this only happens with error pages

I think we can nuke the submission blocker keyword, but this will be near the
top of my list after I'm done with my current feature work.

2007-01-30 20:16:37 Maciej Stachowiak:
In current sources I get an assertion failure:

-[WebHTMLView setDataSource:])

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0xbbadbeef
0x0043d337 in -[WebHTMLView setDataSource:] (self=0x16fee850, _cmd=0x90ac026c,
dataSource=0x0) at /Volumes/Data/mjs/Work/src/Safari/OpenSource/WebKi\
(gdb) bt
#0  0x0043d337 in -[WebHTMLView setDataSource:] (self=0x16fee850,
_cmd=0x90ac026c, dataSource=0x0) at
warning: internal error: no C/C++ fundamental type 1
#1  0x00491586 in WebFrameLoaderClient::setDocumentViewFromPageCache
(this=0x215a520, pageCache=0x17143ce0) at
#2  0x013c155a in WebCore::FrameLoader::transitionToCommitted (this=0x2820400,
pageCache=@0xbfffdd6c) at /Volumes/Data/mjs/Work/src/Safari/OpenSourc\
#3  0x013c1afc in WebCore::FrameLoader::commitProvisionalLoad (this=0x2820400,
prpPageCache=@0xbfffde5c) at /Volumes/Data/mjs/Work/src/Safari/OpenSo\
#4  0x013c527b in WebCore::DocumentLoader::loadFromPageCache (this=0x2945c00,
pageCache=@0xbfffde9c) at /Volumes/Data/mjs/Work/src/Safari/OpenSource\
#5  0x013b80c6 in WebCore::FrameLoader::loadProvisionalItemFromPageCache
(this=0x2820400) at /Volumes/Data/mjs/Work/src/Safari/OpenSource/WebCore/lo\
#6  0x013bc217 in WebCore::FrameLoader::continueLoadAfterNavigationPolicy
(this=0x2820400, request=@0xbfffdfe4, formState=@0xbfffdf48, shouldContinu\
e=true) at

2007-02-05 13:15:59 Stephanie Lewis:
By virtue of being Safari Blocker Reviewed, these have been Safari BRB Reviewed


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