1685121 - Hit testing incorrect in Like button under any comment on m.facebook.com

Status: RESOLVED DUPLICATE of bug 1686002

(Core :: Panning and Zooming, defect, P2)

Description

[Kevin Brosnan [Ex-Mozilla]]

From github: https://github.com/mozilla-mobile/fenix/issues/17310.

On m.facebook.com the clickable area under "Like" is too big, making impossible to unroll replies. See screenrecord please: https://app.box.com/s/5dbck9tm179kqfl0nm8mxmp9aq2h9ta5

This issue does not exist in Firefox 68 and earlier. It emerged in Fenix (Firefox Nightly) few months ago.

Steps to reproduce

1. Open https://m.facebook.com
2. Look for any post with comments.
3. Look for comment with replies under this post.
4. Try to unroll replies clicking on them right under "Like" text of comment.

Expected behavior

Replies must be unrolled

Actual behavior

"Like" link is tapped

Device information

• Android device: Xiaomi Mi A2 Lite with Android 9; LG G Pad 8.3 with Android 7.1
• Fenix version: Nightly 210104 19:29

Change performed by the Move to Bugzilla add-on.

Comment 1

[Botond Ballo [:botond]]

Looks like possibly an event retargeting issue. Does setting ui.mouse.radius.enabled=false and ui.touch.radius.enabled=false resolve the issue?

Comment 2

[Botond Ballo [:botond]]

Confirmed that this is due to touch event retargeting (ui.touch.radius.enabled=false fixes the issue).

Comment 3

[Botond Ballo [:botond]]

This appears to have been fixed by bug 1686002.