1236972 - Search on page (findbar) stops updating text labels when it finds after hidden <textarea> or <input>

Status: VERIFIED DUPLICATE of bug 1174036

(Core :: Find Backend, defect)

Description

[arni2033]

Attachment: testcase 1 - Search on page (findbar) breaks when it founds hidden textarea or input.html

>>>   My Info:   Win7_64, Nightly 46, 32bit, ID 20160104030217
STR:
1. Open attached "testcase 1", make sure only 4 <textarea>s are visible on the page
2. Open Findbar (Ctrl+F), select all text there, type "e" instead of selected text
3. Make sure the first "e" on the page is highlighted
4. Press Shift+Enter
5. Press Enter

Result:       
 After Steps 4 and 5 there's no informative text in findbar

Expectations: 
 After Step 4 the text label in findbar should say "Reached top of page, continued from bottom"
 After Step 5 the text label in findbar should say "Reached end of page, continued from top"

Notes:
 1) Actually, another text label in findbar should display the number of current found string,
    but I used the expectations above to get the regression range.
 2) It causes noticeable breakage in e10s mode: see "User Story" in bug 1174036

Regression range:
> http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=711f08b0aa1d&tochange=37516445a0b5

Comment 1

[arni2033]

To be clear: (1) this was caused by bug 916481 (see regression range)
(2) This will probably fix bug 1174036, so I marked it as blocking bug

Comment 2

[Liz Henry (:lizzard) (relman/hg->git project)]

Thanks arni!
I don't think I need to track this as it's been a regression since Firefox 29. But I am taking a look in bug 1174036.

Comment 3

[Brad Lassey [:blassey] (use needinfo?)]

Dolske, can you help find an assignee?

Comment 5

[Justin Dolske [:Dolske]]

(In reply to arni2033 from comment #1)
> This will probably fix bug 1174036, so I marked it as blocking bug

Thanks for spotting that.

Comment 6

[arni2033]

Fixed on:   Win7_64, Nightly 48, 32bit, ID 20160330030326

I still see minor bugs in those testcases, but nothing like bug 1174036 and bug 1236972 (this)