244884 - Back button does not restore scroll position for vBulletin 3+ forums.

Status: RESOLVED DUPLICATE of bug 215405

(Core :: DOM: Navigation, defect)

Description

[Kevin Ar18]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a2) Gecko/20040527 Firefox/0.8.0+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a2) Gecko/20040527 Firefox/0.8.0+

Cause: unknown.

Reproducible: Always
Steps to Reproduce:
1. Go to a website using a vBulletin forum.
Here are two URLs you can use:
http://www.vbulletin.com/forum/forumdisplay.php?s=d1b86abdeee737bba2a06991bcdfa0b1&f=1
or
http://forums.relicnews.com/forumdisplay.php?f=64
2. Scroll part way down the page.
3. Go to one of the links.
4. Click on the "back" button.

Actual Results:  
The page scroll position is at the top of the page.

Expected Results:  
The page should scroll to the last position you were at on that page.

I saved one of the pages to my computer (from both forums).  However, after
saving the files to my computer the issue no longer appeared.

Comment 1

[R.K.Aa.]

doesn't work in bugzilla either.
Related/dup: bug 215405 bug 210992 bug 217120 bug 238195 

Comment 2

[Boris Zbarsky [:bzbarsky]]

Someone needs to figure out what this site is doing that breaks session history...

Comment 3

[Kevin Ar18]

(In reply to comment #2)
> Someone needs to figure out what this site is doing that breaks session history...
Viewing the page info for both vBulletin forums reveals the following:
Source: Memory Cache
Viewing the page info for other sites on the internet reveals the following:
Source: Disk Cache

Based on this info, I found another page that had Source: Memory Cache here:
http://www.tvguide.com/listings/

This page demonstrated the same problem.
It's possible that this is a duplicate of Bug 215405 (thanks for the links
R.K.Aa) since the URL listed there also displays Source: Memory Cache.

Comment 4

[Boris Zbarsky [:bzbarsky]]

Yeah, vbulletin does indeed send cache-control: no-store.

*** This bug has been marked as a duplicate of 215405 ***