292955 - fastback/bfcache doesn't work well with framesets

Status: NEW

(Core :: DOM: Navigation, defect)

Description

[Boris Zbarsky [:bzbarsky]]

At the moment, if you perform a subframe traversal and then leave the frameset
page, bfcache will be disabled on back.  Testcase in the URL field.

Comment 1

[Brian Ryner (not reading)]

Moving no-cache cases out.

Comment 2

[Adrian Yee]

WFM: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b4) Gecko/20050721 Firefox/1.0+

Comment 3

[Adrian Yee]

Well caching wise (you can also see bug 301397 happen with the frameset), this
seems to work fine with:

Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.8b4) Gecko/20050726
Firefox/1.0+

but with:

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b4) Gecko/20050726 Firefox/1.0+

it eats up 100% cpu usage and doesn't recover (doesn't die, but window stops
redrawing) after pressing back on the last page.  Perhaps this should be filed
as a separate bug?

Comment 4

[Boris Zbarsky [:bzbarsky]]

Yes, please file one bug per problem.  This bug is about a specific issue; any
other misbehavior should get a separate bug.

Comment 5

[Adrian Yee]

Sorry, please ignore this report from comment #3 (and it does recover, it just
takes 15 minutes or so), I tried it with a new profile and it works fine.   It
looks like the HTML Validator extension is choking on the page.

Comment 6

[Brian Ryner (not reading)]

Unassigning subframe-traversal bugs, this behavior is currently pref'd off (browser.sessionhistory.cache_subframes defaults to false).