765537 - Mobile wikipedia first item not expanding

Status: RESOLVED FIXED

(Web Compatibility :: Site Reports, defect)

Description

[Ellie Frost]

Attachment: screenshot-comparison.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20100101 Firefox/13.0
Build ID: 20120608021316

Steps to reproduce:

Navigated to the mobile version of Wikipedia and tried to read an article under a header.
Not all pages display this issue, but I've confirmed thiese do: https://en.m.wikipedia.org/wiki/Metro_Trains_Melbourne, http://en.m.wikipedia.org/wiki/Glossary_of_graph_theory

Left screenshot is stock Android browsers (Android 2.3.7), right is Firefox (14 Beta)



Actual results:

The arrows on the right are missing (minor issue), but the first menu item ("History in the attached screenshot) will not expand.

In testing this issue, I have discovered that navigating to the mobile (*.m.wikipedia.org) from my desktop version of Firefox (13.0) displays this same issue


Expected results:

The section headings should expand and display the content.

Comment 1

[Jeff Muizelaar [:jrmuizel]]

this is indeed quite painful

Comment 2

[Matt Brubeck (:mbrubeck)]

The problem is this line of JavaScript, which passes the wrong number of arguments to removeEventListener.  This throws an exception and interrupts the initialization code, leaving the document in a bad state:

> heading.removeEventListener('click');

This line comes from the mw.mobileFrontend.toggle.init function in this script:
https://bits.wikimedia.org/en.wikipedia.org/load.php?debug=false&lang=en&modules=mobile|mobile.references&only=scripts&skin=mobile&version=1339696553&*

Comment 3

[Ellie Frost]

I've posted a bug to the Mediawiki bug tracker: https://bugzilla.wikimedia.org/show_bug.cgi?id=37673

Comment 4

[Lawrence Mandel [:lmandel] (use needinfo)]

(In reply to Ellie Frost from comment #3)
> I've posted a bug to the Mediawiki bug tracker:
> https://bugzilla.wikimedia.org/show_bug.cgi?id=37673

Ellie's bug was duped to https://bugzilla.wikimedia.org/show_bug.cgi?id=37660, which was resolved today. I just tested and now both see the arrows and can expand the first menu item.