554290 - Text outside of HTML blocks should not be displayed

Status: RESOLVED WONTFIX

(Core :: Layout, defect)

Description

[Alice0775 White]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US;
                  rv:1.9.3a4pre) Gecko/20100322 Minefield/3.7a4pre ID:20100322040139
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US;
                  rv:1.9.3a4pre) Gecko/20100322 Minefield/3.7a4pre ID:20100322040139

When I open Example 3 in XUL tutorial( https://developer.mozilla.org/en/XUL_Tutorial/Adding_HTML_Elements ),
A Example result is different from sample view.

Steps to Reproduce:
1. Start Minefield with new profile
2. Go URL
3. 

Actual Results:
 Text outside of HTML blocks was displayed
 "Expense Report 1 What I Did Last Summer"

Expected Results:
 Text outside of HTML blocks should not be displayed


regression window:

works:
http://hg.mozilla.org/mozilla-central/rev/0c0bf7bd8e7b
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2a1pre) Gecko/20081216 Firefox/3.2a1pre ID:20081216035741

fails:
http://hg.mozilla.org/mozilla-central/rev/79136a417a3a
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2a1pre) Gecko/20081217 Firefox/3.2a1pre ID:20081217070445

pushlog
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=0c0bf7bd8e7b&tochange=79136a417a3a

Comment 1

[Alice0775 White]

Attachment: screen shot

Upper: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2a1pre) Gecko/20081216 Firefox/3.2a1pre ID:20081216035741

Lower: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.3a4pre) Gecko/20100322 Minefield/3.7a4pre ID:20100322040139

Comment 2

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

Presumably the result of bug 421203.

Essentially, the plan there is that this is erroneous XUL, and we don't particularly care about what happens, and we needed to change the behavior in order to fix some serious (potentially exploitable?) bugs.

Comment 3

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

I'm going to mark this WONTFIX for now, though I could probably be convinced otherwise given a good reason to change the behavior (again).