Bug 18401 – Apparent caching between form submits 2

• Component: History
• Status: RESOLVED FIXED

[Peter Enevoldsen]

Some values in a form is apparently cached after submit and when we submit a new form the previous values are shown in the new form.

When we navigate away and thereby submit the framed form (Picture 1) 
we go to Picture 2. The form in picture 2 contains the same values 
as the framed form in Picture 1.

Steps to Reproduce:
1. Set your user agent to "Safari 2.0.4"
2. http://193.17.206.202/cgi-bin/Maconomy/MaconomyPortal.mas11.W_MAS/Framework/maconomyportal.msc
3. Login as "Kevin Sullivan" password 123456
4. Click "Job Management" -> "My Jobs" -> Job no:  2010001
5. navigate between the tabs and see that the values from the previous form are briefly shown before the real data.

A more simple alternative is:
1. Open "Job Management" -> "New Job"
2. Select an element in the drop down.
3. Click next.
4. The element you selected in the dropdown is brifly shown in the "Client/Brand" field

Expected Results:
On previous versions of Safari and Firefox and IE the form 
would not contain any values. e.g no values are "copied"/cached 
between the two forms.
 
Actual Results:
Explain what actually occurred when steps above are executed.

Regression:
This worked in Safari 2 on Panther and Tiger

I found that r25410 introduces the problem. The code that causes the problem is shown below in snippet 1. If I reuse addHistoryForCurrentLocation I dont see the problem, but it of course introduces other problems (as mentioned in the code - 5333496).

I did the test in r29336

FrameLoader.cpp

Snippet 1:
    if (!frameNavigationOnLoad && !documentLoader()->isClientRedirect()) {
        if (!documentLoader()->urlForHistory().isEmpty())
            addHistoryForCurrentLocation();
    } else if (documentLoader()->unreachableURL().isEmpty() && m_currentHistoryItem) {
        m_currentHistoryItem->setURL(documentLoader()->url());
        m_currentHistoryItem->setFormInfoFromRequest(documentLoader()->request());
    }

Snippet 2:
    if (!frameNavigationOnLoad && !documentLoader()->isClientRedirect()) {
        if (!documentLoader()->urlForHistory().isEmpty())
            addHistoryForCurrentLocation();
    } else if (documentLoader()->unreachableURL().isEmpty() && m_currentHistoryItem) {
//        m_currentHistoryItem->setURL(documentLoader()->url());
//       m_currentHistoryItem->setFormInfoFromRequest(documentLoader()->request());
            addHistoryForCurrentLocation();
    }

[Peter Enevoldsen]

Created attachment 20451 [details]
Screenshot 1

[Peter Enevoldsen]

Created attachment 20452 [details]
Screenshot 2

[Mark Malone]

rdar://5620273

[Peter Enevoldsen]

After advise from andersc I tried to set autocomplete=false on the form. It did not help.

[Kevin McCullough]

It looks like frames are not setting createdByParser in HTMLElementFactory (nor iFrames).  I have a fix for that but can't create a reduction to reproduce currently.  I think there is a combination of iframes and frames going on.

[Kevin McCullough]

Created attachment 21934 [details]
Proposed fix.  Needs a layout test.

[Peter Enevoldsen]

Created attachment 22267 [details]
Proposed test

[Peter Enevoldsen]

Created attachment 22279 [details]
Proposed test 2

I updated the test so it complies better with the layout test standards.

[Kevin McCullough]

Comment on attachment 21934 [details]
Proposed fix.  Needs a layout test.

uploading new patch

[Kevin McCullough]

Created attachment 22292 [details]
Fix and layout test

Comment on attachment 22292 [details]
Fix and layout test

Property changes on: LayoutTests/fast/forms/form-and-frame-interaction-retains-values.html
___________________________________________________________________
Name: svn:executable
   + *

I don't think this needs to be set.

\ No newline at end of file

Please add a newline.

r=me

[Kevin McCullough]

Committed revision 35188.

[zaharang]

After this patch, the 'back' function do not work in some site.
ex) http://media.daum.net/politics/others/view.html?cateid=1010&newsid=20080903102907230&p=ned    (sorry for non-english site)