257865 - Opening second window resubmits form without warning

Status: RESOLVED INVALID

(Toolkit :: Places, defect, P5)

Description

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User-Agent:       Mozilla 5.0 (Compatible; MSIE 6.0; Windows NT 5.0) Netscape 7/7.1
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8a3) Gecko/20040817

When you open a new window, and the current page is the result of a form
submission, the form is submitted again.  The fields are blank and there is no
warning like there is when reloading a page.

Reproducible: Always
Steps to Reproduce:
1. Set your options to display on a new window the last page visited.
2. Go to the above URL.
3. Type some text in and submit the form.  Notice the result.
4. Open a new window.

Actual Results:  
When the new window was opened, a second form was submitted.  This second form
was submitted with blank data and no warning was given that the form would be
submitted a second time.

Expected Results:  
Exactly what it should have done is up to Mozilla designers, but it probably
should have either not showed the page, showed the page without submitting
anything, or given a warning and showed nothing if the user chose not to submit
anything.  It definitely shouldn't have submitted the form with blank data.

I've split this off from #245963.

Comment 1

[Boris Zbarsky [:bzbarsky]]

Global history has no concept of POST pages, so it does a GET load of the URI.

This probably needs a separate firefox bug too, due to the forked history impl.

It's not clear what the right choice here is -- keeping POST pages out of the
"last visited" slot can lead to weird results, and storing enough state in the
history to force a load from cache is nontrivial.

I find myself wondering yet again why we have this option at all...

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

In the process of migrating remaining bugs to the new severity system, the severity for this bug cannot be automatically determined. Please retriage this bug using the new severity system.

Comment 3

[Marco Bonardo [:mak]]

I don't think we have the option anymore, or better browser.startup.page = 2 is deprecated and not used anymore in the codebase.
Thus I don't think this can still happen. Maybe in Session Restore, I see bug 423800 that is somewhat related, even if not the same.
Anyway, this is not an History concern and comment 0 cannot happen today.