799329 - Page Info makes inappropriate assumptions about document lifetime

Status: NEW

(Firefox :: Page Info Window, defect)

Description

[Jesse Ruderman]

Attachment: testcase (see comment 0)

1. Load y.html
2. Wait until it's responsive
3. Open Page Info (⌘I)
4. Close the window containing y.html

Result:

JavaScript error: chrome://browser/content/pageinfo/pageInfo.js, line 587: NS_ERROR_XPC_JAVASCRIPT_ERROR_WITH_DETAILS: '[JavaScript Error: "elem.ownerDocument.defaultView is null" {file: "chrome://browser/content/pageinfo/pageInfo.js" line: 638}]' when calling method: [nsIDOMNodeFilter::acceptNode]

Comment 1

[:Gavin Sharp [email: [e-mail]]]

The solution here is presumably to have the page info window watch for unload on the document it cares about, and disable any functionality that relies on it when that happens (media tree view?). I think we don't want to just close the window, since someone might want to keep the basic page info around after having closed the page.

Comment 2

[Philip Chee]

I think this should be dupped to Bug 749652 or vice versa.