1344814 - Can't click and drag scroll bar thumb on Mana Confluence's Edit page

Status: VERIFIED INCOMPLETE

(Web Compatibility :: Site Reports, defect)

Description

[Chris Peterson [:cpeterson]]

STR:
1. Load a Mana Confluence page, such as https://mana.mozilla.org/wiki/display/PM/Quantum+Program
2. Click the "Edit" link at the top of the page.
3. Try to click and drag the page's scroll bar thumb.

RESULT:
The scroll bar thumb's color changes on mouse over, but you can't click and drag it. If you click in the scroll bar below the thumb, the thumb will page down and then you can click and drag the thumb.

Comment 1

[Chris Peterson [:cpeterson]]

Note that this problem only affects the Mana page in Edit mode. You can click and drag the scroll bar thumb in Mana's normal view mode.

Comment 2

[Kartikaya Gupta (email:[e-mail])]

I can reproduce the problem. On OS X it's easier if you set the scrollbar to always showing. It looks like when the page is scrolled to the very top, you can't click on the scroll thumb. Also, wheel-scrolling in the top-right corner of the page doesn't work, so I suspect there's a larger hit-testing issue here than just the scrollbar.

Comment 3

[Kartikaya Gupta (email:[e-mail])]

Ah, there's <div id="editor-precursor"> which is absolute-positioned, width:100% and z-index:1. This is sitting on top of the iframe that contains the scrollbar, so when you try to drag the scrollbar you really end up clicking on the div instead. Chrome does the same thing on my machine. This is INVALID from a browser point of view, it would need to be fixed by the page author (which in this case is Atlassian?). They should make the div slightly less wide to allow the user to grab the scrollbar. Moving to Tech Evangelism.

Comment 4

[Timothy Nikkel (:tnikkel)]

So then presumably async scrollbar drag (bug 1211610) has nothing to do with this then? Removing dependency, please revert if I'm mistaken.

Comment 5

[Kartikaya Gupta (email:[e-mail])]

Correct, thanks. I tested both with and without apz.drag.enabled and got the same results.

Comment 7

[Chris Peterson [:cpeterson]]

Brutuz, do you work at Atlassian? Can you help us find a web developer on Atlassian's Confluence team to investigate this Confluence bug? Thanks!

Comment 8

[ovidiu boca[:Ovidiu]]

Attachment: 2017-05-12_12h49_06.mp4

We tested on Windows 10 x64 with FF Nightly 55.0a1(2017-05-11) and you can click and drag the page's scrollbar thumb but only if you click on the second half of the thumb. The scrollbar doesn't work if you try to grab it from the first half of the thumb. Please see the attached video.

Comment 9

[ovidiu boca[:Ovidiu]]

On iMac and MacBook OS X 10.10 and 10.12, the scrollbar can't be dragged, tested with Nightly 55.0a1 (2017-05-22).

Comment 10

[Chris Peterson [:cpeterson]]

Adam, do you have any contacts at Atlassian? This is a bug in their Confluence wiki software and affects both Firefox and Chrome.

Comment 11

[Adam Stevenson [:adamopenweb]]

Let's reach out to Wendell Keuneman, head of product for Confluence.

https://twitter.com/AdamOpenWeb/status/867855669721915393

Comment 12

[Adam Stevenson [:adamopenweb]]

"Hey Adam, I’m told the best course of action is to open a ticket at https://support.atlassian.com/contact  and we’ll attend to the issue."

I reported the issue to their support team.

Comment 13

[Adam Stevenson [:adamopenweb]]

After a couple exchanges with support, they can't help without "the SEN (SEN-XXXXXX) of the Confluence license you're using."

Will see if I can find someone that has that.

Comment 14

[Shyam Mani [:fox2mike]]

I passed along our SEN to Adam over email.

Comment 15

[Adam Stevenson [:adamopenweb]]

Thanks Shyam!

Apparently this bug has already been reported to them: https://jira.atlassian.com/browse/CONFSERVER-39392

Others can vote on the issue or leave comments if they like (I voted). 

I think we should close this report as duplicate, as they know about it and it's not Firefox specific. But since Bugzilla requires a bug id for duplicates, I'm marking as incomplete. If anyone disagrees, feel free to open this back up.

Comment 16

[Chris Peterson [:cpeterson]]

Thanks for tracking this down, Shyam and Adam!