1360073 - Anonymous/XUL inspection: (bindings) inspector sometimes selects elements that don't exist in markup

Status: RESOLVED FIXED

(DevTools :: Inspector, defect, P3)

Description

[684sigma]

Attachment: Ctrl+Shift+C selects not existing element, by reporter.zip

I noticed a problem in Firefox ESR 45. It also happens in Nightly 55.
When inspecting element in browser UI, sometimes the element isn't selected in markup. Here's how to reproduce the bug:

1. Create pref dom.allow_XUL_XBL_for_file as true.
2. Open attached .html page.
3. Press Ctrl+Shift+C and inspect text "123" on the page.

Result: <pre> element is selected in breadcrumbs, and no specific element is selected in markup.
Expected: <test> element should be selected in markup and also in breadcrumbs for consistency.

Comment 1

[Patrick Brosset <:pbro>]

DevTools bug triage (filter on CLIMBING SHOES).

Comment 2

[Patrick Brosset <:pbro>]

This might be the same as bug 1360072. We need to investigate this a little more.

Comment 3

[Brian Grinstead [:bgrins]]

As far as I can tell, these XBL inspection bugs were all fixed by Bug 1465873. Please reopen if you can reproduce it.