Robert Jakab Reporter
	Description • 18 years ago

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0

By pressing the back button, Firefox navigates to the top of the previous page instead of the original location on that page.
The same behavior applies to javascript:history.go(-1).

(IE and Opera perform as expected)

Reproducible: Always

Steps to Reproduce:
For Firefox back button take the following steps

1. Open http://www.valamit.com/2006/Island/index.html
2. Scroll down to the end of the page.
2. Click on the last photo on the page.
3. The photo will be opened.
4. Press the Firefox back button.
5. The index page will be shown, but not scrolled to the end as described in step number 2.



For javascript:history.go(-1) follow the following steps:

1. Open http://www.valamit.com/2006/Island/index.html
2. Scroll down to the end of the page.
2. Click on the last photo on the page.
3. The photo will be opened in large size.
4. Click on the enlarged photo. (this triggers javascript:history.go(-1))
5. The index page will be shown, but not scrolled to the end as described in step number 2.



Actual Results:  
Backward navigation will load the previous page, but the position within the previous page is not remembered.

Expected Results:  
By pressing the back button the previous page should be shown and also the position within that page should be remembered.

IE and Opera perform as expected.

For plain static HTML page navigation, Firefox also works correctly. The problem
appears only within dynamically generated HTML through JavaScript.

	krishna
	Comment 1 • 18 years ago

Dupe of bug# 215405?

	Jesse Ruderman
	Comment 2 • 18 years ago

No.  This page doesn't use cache-control: no-store.  It's a different bug, involving document.open().

	Jesse Ruderman
	Comment 4 • 18 years ago

CCing Hideo Saito, who fixed bug 47350, to see if he's interested in fixing this as well.

	Steve England [:stevee]
	Comment 5 • 18 years ago

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.1) Gecko/20061121 BonEcho/2.0 ID:2006112105

I see the problem the reporter sees at the URL, but Jesse's testcase WFM.

	Jesse Ruderman
	Comment 6 • 18 years ago

Interesting.. want to try making a new testcase?

	Steve England [:stevee]
	Comment 7 • 18 years ago

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20061121 Minefield/3.0a1

With Trunk Jesse's testcase does indeed show the bug where going back one step in history looses the vertical scroll position.

I could try and make a testcase for Branch, sure. It would likely lack finesse and not be minimal mind.

	Worcester12345
	Comment 8 • 18 years ago

I couldn't reproduce the bad results as described in the first post using 

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a3pre) Gecko/20070322 SeaMonkey/1.5a

	Daniel Schroeter
	Comment 9 • 17 years ago

> Steps to Reproduce:
> For Firefox back button take the following steps
> 
> 1. Open http://www.valamit.com/2006/Island/index.html
> 2. Scroll down to the end of the page.
> 2. Click on the last photo on the page.
> 3. The photo will be opened.
> 4. Press the Firefox back button.
> 5. The index page will be shown, but not scrolled to the end as described in
> step number 2.

This and the testcase WFM with
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a8) Gecko/2007091211 GranParadiso/3.0a8

Can we close this bug?