648627 - tab-modal prompts are not used after a basic auth prompt is displayed

Status: RESOLVED DUPLICATE of bug 637160

(Core :: DOM: Core & HTML, defect)

Description

[Kathleen :Brade]

While testing an add-on in Firefox 4, I came across this problem in Firefox 4 (reproduced on Mac and Windows).

Step 1:  Click a button defined as:
    <input type="button" value="Show Alert"
           onclick="alert('Hello world');">
The alert shows up in tab-modal format as expected.

Step 2:  Click a button that causes an http basic auth prompt to be displayed, e.g.:
  <input type="button" value="HTTP Basic Auth" onclick="document.location.href ='http://browserspy.dk/password-ok.php';">
The HTTP basic auth prompt is displayed modal.  (Note: with this URL, you'll need to go back before step 3.)

Step 3:  Click the button from step 1 again.  This alert now displays modal to the window instead of in the tab (until the web page is reloaded).

Comment 1

[Kevin Brosnan [Ex-Mozilla]]

Dupe of bug 637160?

Comment 2

[Kathleen :Brade]

Attachment: test case

Comment 3

[Kathleen :Brade]

Who should own this issue?  Can someone suggest where / how to debug this?

Comment 4

[Justin Dolske [:Dolske]]

The having to click "back" almost certainly makes this a dupe of bug 637160.