1237233 - Links inside <iframe> may be clicked after mouseup, while mousedown target is placed in parent doc

Status: NEW

(Core :: DOM: UI Events & Focus Handling, defect)

Description

[arni2033]

Attachment: testcase 1 ('data') - Links inside iframe may be clicked after mouseup.htm

>>>   My Info:   Win7_64, Nightly 46, 32bit, ID 20160105030211
Basic STR here is:
1. mousedown on a link in <iframe>
2. move mouse to parent doc
3. mouseup on parent doc
4. mousedown on parent doc
5. move mouse to the link in <iframe>
6. mouseup on the link

Result:       The link was clicked
Expectations: It shouldn't happen, because mousedown (4) and mouseup (6) targets aren't the same node

Notes:
 See self-explanatory "testcase 1" and "testcase 2" for detailed STR
 IE11 and Chrome do not expose this bug. Though IE doesn't support "data:" links, so "testcase 2" with
 Google Analytics was made for IE11. Also, "the button" was also made for IE11 and Chrome, because
 otherwise they usually try text selection and don't even fire mouseup on the link from Step 6 above.

 If you can't reproduce this on Windows, there must be a misunderstanding. Do request a screencast.

Comment 1

[arni2033]

Attachment: testcase 2 (GA) - Links inside iframe may be clicked after mouseup.htm